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Addressing Violence Towards Youth and Young Adults in Indigenous Communities: A Tribal-Research Partnership, United States, 2022-2023 (ICPSR 39178)

Released/updated on: 2025-12-02
Geographic coverage: United States
Time period: 2022-01-01--2024-07-01

Through a new tribal program and researcher partnership, this study aimed to answer the questions: what does violence look like to Native youth, and how do Native youth experience resilience and how can that resilience be strengthened? Through the use of two theoretical frameworks, Galtung's Basic Human Needs and the Socio-Ecological model, these questions were explored.

The work from this project was threefold, first this was a capacity-building grant. Therefore, the central goal was to establish a new tribal program partnership between Native Women's Society of the Great Plains (NWS), led by researchers from the University of South Dakota (USD) and researchers from the University of Colorado Colorado Springs (UCCS). Together they worked to identify additional members who would be part of the study design, implementation, analysis, and dissemination. Project partners ranged in age and geographic location. Participants from NWS, USD, and UCCS worked collaboratively to meet the additional goals of this project.

The second goal was to explore an issue of concern to NWS across the Great Plains Region using the community based participatory research approach. From previous discussions between the researchers and NWS team, vulnerability to violence begins in youth, and therefore was of particular interest to Native people of the Great Plains Region. Thus, USD, NSW, and UCCS developed and applied for the Tribal-Research Capacity-Building Grant together.

The third goal was to identify a priority matter from the data collected on this project and collaborate on a subsequent grant application.

To meet these three overarching goals, five objectives were mapped out for this project. These included the following:

  • Objective 1: Develop a communication strategy among the partnership agency members to advance capacity and enable meaningful conversations about difficult topics.
  • Objective 2: Develop an answer to the question "what is violence?" for this population.
  • Objective 3: To understand how these different sources of violence interact with the human needs identified under objective 2 to create patterned vulnerabilities (or susceptibilities).
  • Objective 4: To address how resilience works within the developed model.
  • Objective 5: To extend capacity building in the broader Indigenous communities of the Great Plains through bidirectional communication and information sharing.

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Alcohol Availability, Type of Alcohol Establishment, Distribution Policies, and Their Relationship to Crime and Disorder in the District of Columbia, 2000-2006 (ICPSR 25763)

Released/updated on: 2009-07-31
Geographic coverage: District of Columbia, United States
Time period: 2000-01-01--2006-01-01
The purpose of the study was to investigate the relationship between alcohol availability, type of alcohol establishment, distribution policies, and violence and disorder at the block group level in the District of Columbia. This study developed and tested a grounded comprehensive theoretical model of the relationship between alcohol availability and violence and disorder. The study also developed a geographic information system (GIS) containing neighborhood crime and demographic and physical environmental characteristics at the block group level for 431 block groups in the District of Columbia. The principal investigator calculated density measures of alcohol availability and distribution practices and aggregated characteristics of neighborhoods to examine the relationships of those measures to crime and violence. The project used data from various sources to create multiple variables measuring the physical, social, economic, and cultural characteristics of a given area in addition to the density of alcohol-selling establishments by type and incidence of criminal activity. This study examined the influence of alcohol outlets on four outcomes: (1) aggravated assault incidents, (2) calls for service for disorderly conduct, (3) calls for services for social disorder more broadly defined, and (4) calls for service for a domestic incident. The dataset for this study contains a total of 103 variables including crime variables, Census variables, alcohol outlet variables, neighborhood structural constraints variables, motivated offenders variables, and physical environment variables.
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Analysis of Arrests in Paris, June 1848 (ICPSR 49)

Released/updated on: 2006-01-12
Geographic coverage: France, Global, Paris
This data collection contains three files pertaining to the June 1848 insurrection in Paris and to people charged with or arrested for participation in the insurrection. The data files contain social, economic, and demographic information. Information is provided on the results of the judicial proceedings against the individual after arrest, as well as demographic characteristics of the individual, such as occupation, place of birth, sex, age, marital status, number of children, and place of residence (Part 1), the number of inhabitants arrested in connection with the rebellion, the labor force, and social characteristics of the 12 zones (arrondisements) (Part 2), and demographic and arrest information with a focus on the furnished apartments, clubs, and popular societies within the 48 quartiers (districts) existing in Paris in 1848 (Part 3).
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Battering, Work, and Welfare in Allegheny County, Pennsylvania, 2001-2002 (ICPSR 4081)

Released/updated on: 2012-04-24
Geographic coverage: United States, Pennsylvania
Time period: 2001-05-01--2002-11-01
The project's primary research objective was to assess the degree to which violence, sabotage, and control present obstacles to waged work and job training for women in Allegheny County, Pennsylvania. It sought to develop and assess instruments and generate data to serve as guideposts for policy and service delivery. The study consisted of two parts: (1) a series of interviews with 40 female welfare recipients, and (2) a community literacy project that resulted in a collection of narratives by female welfare recipients. Interviews were conducted with 40 Temporary Assistance to Needy Families (TANF) recipients who were enrolled at the Reemployment Transition Center (RTC) in Allegheny County, Pennsylvania, between May 29, 2001, and June 27, 2001. After explaining the research project to the intake group, the interviewers met in private with interested potential subjects. The interviews consisted of an initial face-to-face retrospective interview (Parts 1 through 5), conducted when subjects enrolled at RTC, and three follow-up interviews designed to be administered quarterly. The first follow-up interview (Part 6) was conducted between October 15, 2001, and May 7, 2002. The second follow-up interview (Part 7) was conducted between March 12, 2002, and May 21, 2002. The final follow-up (Part 8) interview was conducted between July 3, 2002, and November 15, 2002. Follow-up interviews were in person or by telephone (depending on the respondent's preference). A key innovation of this research project was to gather data on school, work, welfare, and relationships with enough precision to trace the complex connections among battering, work, and welfare over the course of poor women's lives (Part 9). To do so, researchers collected data on the start and end dates of each period of education, each job, each period on welfare, and each relationship. These data enabled researchers to compare the number and length of spells at work and on welfare for women who did and women who did not report various obstacles, including battering. Finally, researchers summarized some elements of the longitudinal data such as relationship and employment information into a data file (Part 10). In all, there are 10 quantitative data files encompassing 1,895 variables. In addition to the 10 quantitative data files, there are respondent answers to open text questions (Part 11). Interviewers were able to record field notes, which included observations about the interview context, overall impressions of the process, elaborated answers to open-ended questions, etc. (Part 12). There are also 8 autobiographical narratives to serve as sources of qualitative data on the ways current and former welfare recipients experience and perceive work, welfare, and relationships (including abuse) (Part 13). The Part 1 (Retrospective Demographic and Hardship Data) data file contains demographic information including living arrangements and income. The Part 2 (Retrospective Education Data) data file contains information related to the respondent's prior education. The Part 3 (Retrospective Employment Data) data file contains information related to the respondent's employment history. The Part 4 (Retrospective Welfare Data) contains information related to the respondent's welfare history. The Part 5 (Retrospective Relationship Data) data file contains information related to the Work-Related Control, Abuse, and Sabotage Checklist (WORCASC) and the Work/School Abuse Scale (W/SAS), which asked questions about interference, sabotage, and violence in relationships. The Part 6 (First Follow-Up Interview Data), Part 7 (Second Follow-Up Interview Data), and Part 8 (Final Follow-Up Interview Data) data files include follow-up information to that collected in Parts 1-5. The Part 9 (Date and Spell Data) data file provides data on the start and end dates of each period of education, each job, each period on welfare, and each relationship, and the Part 10 (Summary Longitudinal Data) data file summarizes some elements of the longitudinal data.
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Building Healthy Relationships: An Evaluation of the Fourth R Curriculum with Middle School Students in Bronx, NY (2010-2012) (ICPSR 35255)

Released/updated on: 2017-06-09
Geographic coverage: New York City, United States, New York (state)
Time period: 2010-09-01--2012-06-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

This study seeks to test the Fourth R curriculum, a curriculum that seeks to build relationship knowledge and skills, with a younger, urban population of middle school students in the Bronx, New York. Utilizing a randomized controlled trial design, this study tests the effectiveness of the Fourth R curriculum with seventh-grade students drawn from ten public middle schools in the Bronx, New York. A secondary quasi-experimental study seeks to examine diffusion of program impacts by comparing outcomes between students assigned to the experimental control sample and students in three comparison schools where no one received the Fourth R.

The study seeks to measure program impact on five primary and three secondary domains. Primary program impact domains include:

  1. Dating violence (victimization and perpetration)
  2. Sexual harassment/assault (victimization and perpetration)
  3. Peer violence/bullying (victimization and perpetration)
  4. Sexual activity
  5. Drug and alcohol use
Secondary outcomes, which are targeted by the Fourth R curriculum, but are not the core program focus, include:
  1. Perceived school safety
  2. Positive beliefs (e.g., anti-fighting/violence, rejection of gender stereotypes)
  3. Pro-social behaviors

This study achieved their goals through student surveys, administrator and teacher interviews, and student focus groups.

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Bullying and Violence on the School Bus: A Mixed-Methods Assessment of Behavioral Management Strategies, United States, 2016-2018 (ICPSR 37043)

Released/updated on: 2018-11-29
Geographic coverage: United States
Time period: 2016-09-01--2018-03-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme files for a brief dscription of the files available with this collection and consult the investigator(s) if further information is needed.

The qualitative data are not available as part of the data collection at this time.

Numerous high-profile events involving student victimization on school buses have raised critical questions regarding the safety of school-based transportation for children, the efforts taken by school districts to protect students on buses, and the most effective transportation-based behavioral management strategies for reducing misconduct. To address these questions, a national web-based survey was administered to public school district-level transportation officials throughout the United States to assess the prevalence of misconduct on buses, identify strategies to address misconduct, and describe effective ways to reduce student misbehavior on buses. Telephone interviews were also conducted with a small group of transportation officials to understand the challenges of transportation-based behavioral management, to determine successful strategies to create safe and positive school bus environments, and to identify data-driven approaches for tracking and assessing disciplinary referrals.

The collection includes 10 Stata data files:

  • BVSBS_analysis file.dta (n=2,595; 1058 variables)
  • Title Crosswalk File.dta (n=2,594; 3 variables)
  • Lessons Learned and Open Dummies.dta (n=1,543; 200 variables)
  • CCD dataset.dta (n=12,494; 89 variables)
  • BVSB_REGION.dta (n=4; 3 variables)
  • BVSB_SCHOOLS.dta (n=3; 3 variables)
  • BVSB_STUDENTS.dta (n=3; 3 variables)
  • BVSB_URBAN.dta (n=8; 3 variables)
  • BVSB_WHITE.dta (n=3; 3 variables)
  • FINALRAKER.dta (n=2,595; 2 variables)
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Bullying, Sexual, and Dating Violence Trajectories From Early to Late Adolescence in the Midwestern United States, 2007-2013. (ICPSR 34835)

Released/updated on: 2016-11-14
Geographic coverage: United States
Time period: 2007-01-01--2013-01-01

These data are part of NACJD's Fast Track Release and are distributed as they there received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except of the removal of direct identifiers. Users should refer to the accompany readme file for a brief description of the files available with this collections and consult the investigator(s) if further information is needed.

This study tested a model of individual, familial, and peer variables that additively and synergistically increased or decreased the risk for sexual and teen dating violence based on bullying experiences in early adolescence. The study surveyed 1,162 students from three cohorts in four Midwestern middle schools, who were then followed into three high schools. Five waves of surveys collected information about the level of violence in student homes with parents and siblings or with other children, physical abuse, sexual abuse, exposure to domestic violence, frequency of bullying, self-reported delinquency, and exposure to delinquent friends during the middle school years. Waves six and seven were collected during high school and sexual violence and teen dating violence measures were added to the surveys.

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Child Exposure to Intimate Partner Violence and Parent Aggression in Two Generations, United States, 2016-2018 (ICPSR 37185)

Released/updated on: 2019-07-25
Geographic coverage: United States
Time period: 2016-01-01--2018-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The research purpose of this project was to advance the scientific understanding of children's exposure to family violence and children's adjustment. This research examined the prevalence of child exposure to psychological and physical Intimate Partner Violence (IPV) and parent-to-child aggression (PCA), proximal associations with child externalizing and internalizing behavior, social and scholastic competence in early childhood and adolescence, and the developmental timing and intergenerational transmission of exposure to IPV and PCA related to child externalizing behavior. The study also looked at child effortful control and positive parenting as risk and protective factors theorized to mediate associations between child exposure to family violence and later child adjustment. Secondary analyses were conducted using a prospective multigenerational data set involving community families from lower socioeconomic status backgrounds that comprise the Three Generational Study.

The study collection includes 3 SPSS (.sav) files. The zip file includes CEV_3GS4_Cooccur_itemsB_12212018.sav (n= 283; 356 variables), CEV_3GS7_Cooccur_itemsB_12212018.sav (n= 184; 341 variables), CEV_OYS5_Cooccur_itemsC_12212018.sav (n= 206; 368 variables).

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Childhood Victimization and Delinquency, Adult Criminality, and Violent Criminal Behavior in a Large Urban County in the Northwest United States, 1980-1997 (ICPSR 3548)

Released/updated on: 2003-05-06
Geographic coverage: United States
Time period: 1980-01-01--1997-01-01
This research project was designed as a replication and extension of earlier research on how childhood victimization relates to delinquency, adult criminality, and violent criminal behavior (CHILD ABUSE, NEGLECT, AND VIOLENT CRIMINAL BEHAVIOR IN A MIDWEST METROPOLITAN AREA OF THE UNITED STATES, 1967-1988 (ICPSR 9480)). The study consisted of a sample of abused and neglected children who were made dependents of the Superior Court of a large urban county in the Northwest between 1980 and 1984, and a matched control group of children. Dependency records were obtained from the county court house. Control match criteria were collected from Department of Health birth records data. Type of abuse/neglect precipitating the dependency petition was collected and coded using a modified version of the Maltreatment Classification Coding Scheme (MCS). Data on juvenile arrests from juvenile court records, including both number and types, were collected for each abused and/or neglected youth and each matched control subject. Adult criminal arrests, excluding routine traffic offenses, for all abused and neglected subjects and matched controls were collected from local, county, state, and federal law enforcement sources. A subset of arrests consisting of violent crimes was developed as a key outcome of interest. Major types of variables included in this study are demographics, criminal records, dependency records (only for those subjects abused/neglected as children), including type and severity of child abuse/neglect, and census socioeconomic variables. Several derived variables were also included.
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Community Reporting Thresholds: Sharing Information with Authorities Concerning Terrorism and Targeted Violence, California and Illinois, 2021 (ICPSR 38318)

Released/updated on: 2022-07-14
Geographic coverage: United States, Illinois, California

Parents, siblings, partners, and friends are often the first people to suspect a loved one is on the trajectory towards targeted violence or terrorism. These intimate bystanders are well positioned to facilitate prevention efforts if there are known and trusted reporting pathways to law enforcement or other resources. Little is known in the United States about the reporting processes for intimate bystanders to targeted violence or terrorism. This study is built on previous Australian and United Kingdom studies to understand the processes of intimate bystanders in the United States, in order to inform new, localized and contextually-sensitive understandings of and approaches to community reporting issues.

Qualitative-quantitative interviews were conducted from March 2021 to July 2021 virtually over Zoom with 123 community members living in California and Illinois. The researchers describe their perspectives on barriers, facilitators, and pathways. The study sought to enhance prior studies with a larger and more demographically-diverse sample. It included a focus on ISIS/Al-Qa'eda-inspired foreign-terrorism, White Power movement-inspired domestic terrorism, and--of particular relevance to the US---non-ideologically motivated targeted, workplace violence.

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A Comprehensive Measure of Youth Experiences with Bias Victimization: Findings from the Youth Bias Victimization Questionnaire (YBVQ), Boston, MA and Philadelphia, PA, Tennessee, 2017 (ICPSR 37193)

Released/updated on: 2023-01-12
Geographic coverage: United States, Tennessee, Massachusetts, Philadelphia, Pennsylvania, Boston

These data were collected as part of a mixed-methods study to develop a comprehensive youth bias crime violence exposure instrument, the Youth Bias Victimization Questionnaire (YBVQ). With input from a panel of violence and delinquency experts, the research team produced initial drafts of the questionnaire, then conducted focus groups and cognitive interviews with youth and young adults to inform development and item comprehension. To pilot test the YBVQ, a sample of 854 youth aged 11-21 were surveyed across three research sites: 1) Boston (n=262); 2) Philadelphia (n=318); and 3) Appalachian areas of Tennessee (n=274). This convenience sample was recruited using an intercept strategy, with a combination of recruitment occurring at youth-serving organizations, community festivals or events, and schools. Participants completed the YBVQ through a computer-assisted self-interview (CASI) on a tablet or through an online link to a web-based survey.

Only the pilot survey data are available in this collection. Measures include demographic variables (gender, race/ethnicity, sexual orientation, religion, age, grade level), bias victimization based on six potential target characteristics, incident specifics, witnessing bias victimization, school and neighborhood climate, alcohol use, resiliency, emotional distress, and other experiences of bias, microaggressions, and victimization.

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Consequences of Childhood Exposure to Intimate Partner Violence in Chicago, Illinois, 1994-2000 (ICPSR 20344)

Released/updated on: 2008-04-15
Geographic coverage: United States, Chicago, Illinois
Time period: 1994-01-01--2000-01-01
This study used data from the first two waves of the Project on Human Development in Chicago Neighborhoods (PHDCN) to analyze the consequences of childhood exposure to intimate partner violence. The researcher for this study attempted to make four contributions: (1) provide theory driven research in the field of intimate partner violence, (2) do practical research, (3) strike a balance between the resolution of measurement problems and the examination of concrete outcomes, and (4) use high quality data and advanced statistical techniques to adjudicate between conflicting findings in existing literature. The nine data files used in this study were drawn from multiple imputed iterations using the Expectation-Maximization (E.M.) algorithm and data augmentation to address missing data. They included data from two waves of the PHDCN, with 4,955 records for each wave. The data included information for subjects aged 0 to 18 and covered the years 1994 to 2000. The researcher used various scales to measure domestic violence exposer, the impact of exposure on the child's cognitive functioning, the behavioral impact of exposure to domestic violence, anxiety, and the parent-child relationship. Data include the variables that the researcher used to study the effect of domestic violence exposure on not only externalizing, internalizing, and total behavior problems, and academic and cognitive ability, but also truancy, grade repetition, and drug use. This study also contains a selection of variables from several PHDCN studies including those pertaining to intimate partner violence, child abuse, juvenile delinquency, deviance of peers, alcohol use, primary caregiver involvement in the subject's life, and demographics.
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Correlates and Consequences of Juvenile Exposure to Violence in the United States, 1995 (ICPSR 3986)

Released/updated on: 2005-11-04
Geographic coverage: United States
Time period: 1995-01-01--1995-06-01
This study examined the effect of exposure to violence on juveniles. It was specifically concerned with juveniles' perceptions of violence in schools and communities and how exposure to violence served as a risk factor for juvenile drug and alcohol use and participation in other delinquent activities. It also sought to develop a more complete picture of the context and consequences of violence in schools. The data for this study were drawn from the NATIONAL SURVEY OF ADOLESCENTS IN THE UNITED STATES, 1995 (ICPSR 2833). The data were collected through a national probability telephone sample of 4,023 juveniles and their parents or guardians. The current study drew primarily on the questions that were asked about respondents' experiences witnessing violence, their own victimization, peer and family deviance, their own delinquent activities, and drug and alcohol use.
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The Creation of Muhajirat in America: Social Media as a Platform for Crafting Gender-Specific Interventions for the Domestic Radicalization of Women, 5 countries, 1970-2018 (ICPSR 37682)

Released/updated on: 2021-06-30
Geographic coverage: New Zealand, Canada, United States, United Kingdom, Australia
Time period: 1970-01-01--2018-01-01

This study examines the radicalization of Western women to extremist violence, both through the creation of a moral-situational-action risk model and the examination of their responses to various types of online propaganda. The Moral-Situational-Action Risk Model for Extremist Violence (MSA-RMEV) was developed using situational action theory from criminology and violence risk practice literature. The MSA-RMEV revolves around three domains reflective of propensity, mobilization, and capacity building, geared towards providing a violence risk assessment that can assist the intelligence community in preventing future acts of violence.

A sample of women who self-identified as conservative, liberal, and Muslim were exposed to jihadist, alt-right, and alt-left online propaganda. Physiological responses and self-report assessments were recorded. Eye-gaze, pupil dilation, galvanic skin response, heart rate, and facial emotions were documented, along with women's judgment of their emotional, cognitive, and arousal states, while viewing propaganda.

Based on their results, women were categorized as high-risk, medium-risk, or low-risk for violence. Additionally, numerous variables were created to identify participant's beliefs and behavior related to radicalization. Beliefs included religiosity, political affiliation, the presence of moral emotions, sacred values, developmental maturity, and militant thinking. Behaviors included group affiliations, extent of involvement in extremist activities, and presence on social media platforms such as Facebook, Reddit, and Twitter. Demographic variables such as age, marital status, number of children, race, ethnicity, country of origin, and educational status were included.

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Cross-Border Multi-Jurisdictional Task Force Evaluation, San Diego and Imperial Counties, California, 2007-2012 (ICPSR 34904)

Released/updated on: 2016-11-30
Geographic coverage: San Diego County, California, Imperial County, California
Time period: 2007-01-01--2012-01-01, 2007-01-01--2012-01-01, 2011-10-01--2012-04-01, 2007-01-01--2012-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The study involved a three-year evaluation of two efforts to target crime stemming from the Southern Border of the United States - one which funded greater participation by local officers on four FBI-led multi-jurisdictional task forces (MJTFs) and another that created a new multi-jurisdictional team. As part of this evaluation, researchers documented the level of inter-agency collaboration and communication when the project began, gathered information regarding the benefits and challenges of MJTF participation, measured the level of communication and collaboration, and tracked a variety of outcomes specific to the funded MJTFs, as well as three comparison MJTFs. Multiple methodologies were used to achieve these goals including surveys of task forces, law enforcement stakeholders, and community residents; law enforcement focus groups; program observations; and analysis of archival data related to staffing costs; task force activities; task force target criminal history; and prosecution outcomes.

The study is comprised of several data files in SPSS format:

  • Imperial County Law Enforcement Stakeholder Survey Data (35 cases and 199 variables)
  • Imperial County Resident Survey (402 cases and 70 variables)
  • Imperial Task Force Survey (6 cases and 84 variables)
  • Prosecution Outcome Data (1,973 cases and 115 variables)
  • San Diego County Resident Survey (402 cases and 69 variables)
  • San Diego Law Enforcement Stakeholder Survey (460 cases and 353 variables)
  • San Diego Task Force Survey (18 cases and 101 variables)
  • Staff and Cost Measures Data (7 cases and 61 variables)
  • Criminal Activity Data (110 cases and 50 variables)

Additionally, Calls for Service Data, Countywide Arrest Data, and Data used for Social Network Analysis are available in Excel format.

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Custody Evaluations When There Are Allegations of Domestic Violence: Practices, Beliefs and Recommendations of Professional Evaluators in New York City, 1997-2009 (ICPSR 30321)

Released/updated on: 2013-01-31
Geographic coverage: New York City, United States, New York (state)
Time period: 1997-01-01--2007-01-01, 2007-01-01--2009-01-01
The purpose of this study was to investigate the impact of the beliefs and investigative practices of psychologists, psychiatrists, and social workers who had been appointed by a court to evaluate families in disputed custody cases when there were allegations of domestic violence. The research team conducted a Case Review study (Part 1) and administered an Evaluator Survey to corresponding case evaluators (Part 2) between August 2007 and December 2009. The case review study was implemented through four private non-profit legal services agencies in New York City that provide free legal representation to domestic violence victims in civil proceedings including custody and visitation litigation. A total of 69 cases involving custody or visitation issues that were litigated and resolved between 1997 and 2007 were identified for inclusion in the study. The case review study involved the development of a Coding Scale for Custody Evaluations with Domestic Violence (DV) Allegations in order to rate the characteristics of the custody evaluations and the court outcomes. Raters coded each of the 69 cases in the case review sample with the Evaluation Coding Scale. The research team administered the Evaluator Survey (Part 2) to 14 custody evaluators who had completed evaluation reports for the cases in the Part 1 case review study.
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Data Bank of Assassinations, 1948-1967 (ICPSR 5208)

Released/updated on: 2003-06-09
Geographic coverage: Myanmar, Cyprus, Cambodia, Sudan, Malaysia, Paraguay, Portugal, Iceland, Global, Syria, North Korea, Greece, South Korea, Austria, Yugoslavia, El Salvador, Morocco, Iran, Luxembourg, Panama, Brazil, Guatemala, Iraq, Chile, Laos, Ecuador, Colombia, Argentina, Hungary, Japan, Zambia, Ghana, India, Albania, New Zealand, Canada, Turkey, Belgium, Finland, Italy, Honduras, Peru, Germany, Ethiopia, Haiti, Afghanistan, United States, Egypt, China (Peoples Republic), Thailand, Bolivia, Libya, Costa Rica, Saudi Arabia, Netherlands, Sweden, Pakistan, Ireland, Poland, France, Jordan, Bulgaria, Tunisia, Romania, Uruguay, Sri Lanka, Philippines, United Kingdom, Switzerland, Spain, Lebanon, Liberia, Cuba, Venezuela, Czech Republic, Nicaragua, Norway, Denmark, Dominican Republic, Mexico, Zimbabwe, Israel, Australia, Soviet Union, Indonesia
Time period: 1948-01-01--1967-01-01
This study contains data on 409 assassination events that occurred in 84 countries in the period 1948-1967. The data cover plotted, attempted, or actual assassinations of prominent public figures, such as top government officeholders and military figures, leaders of large trade unions or religious movements, and leaders of minority groups. For each event, information is provided on the country, date, and location of occurrence, the issue involved, the identity of the assassin and of the target, such as the type of group to which the assassin belonged and the political and social position of the target, and the outcome of the event.
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Data on Dispute Related Violence in a Northeastern City, United States, 2010 to 2012 (ICPSR 36363)

Released/updated on: 2018-04-26
Geographic coverage: United States
Time period: 2010-01-01--2012-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The objective of this project was to enhance understanding of violent disputes by examining the use of aggression to rectify a perceived wrong. It also sought to identify the factors that determine if retaliatory violence occurs within disputes as well as to understand how long retaliatory disputes last, and what factors lead to the termination of such disputes.

This collection includes two SPSS data files: "Dispute_Database_for_NACJD.sav" with 40 variables and 111 cases and "Northeastern_City_Violence_Database_NACJD_submission.sav" with 164 variables and 1,303 cases.

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Dating Abuse Prevention in Teens of Moms with Domestic Violence Protection Orders, North Carolina, 2010-2011 (ICPSR 33381)

Released/updated on: 2018-07-19
Geographic coverage: North Carolina, United States
Time period: 2010-03-01--2011-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

Children exposed to domestic violence are at increased risk of experiencing and perpetrating violence against their partners when they become adolescents and adults. Despite this increased risk and the fact that approximately 15 million children are exposed to domestic violence yearly, there have been no evaluated dating abuse prevention programs conducted specifically with this population.

The collection contains 2 SAS data files: baseline_final.sas (n=51; 465 variables) and followup_final.sas (n=32; 463 variables).

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Developmental Pathways of Teen Dating Violence in a High-Risk Sample, Erie County, New York, 2013-2015 (ICPSR 36430)

Released/updated on: 2017-12-18
Geographic coverage: United States, New York (state), Erie County
Time period: 2013-01-01--2015-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

This study examined etiological pathways to teen dating violence (TDV) in a sample of adolescents who had been followed since infancy and were at high-risk due to parental alcohol problems. Adolescents (M=17.68 years of age) who had been participating, along with their parents, in a longitudinal study of the effects of parental alcohol problems on child development completed an additional wave of survey data in 11-12th grades. Families (N=227) were initially recruited from county birth records when the child was 12 months of age and had been previously assessed at 12-, 18-, 24-, 36-months, kindergarten, 4th, 6th, and 8th grades. For the current wave of data collection, adolescent participants (n=185) used computer-assisted interviewing to complete questionnaires assessing their individual characteristics, family and peer relationships, substance use, dating behaviors and involvement in TDV as a victim or perpetrator.

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Development and Validation of a Coercive Control Measure for Intimate Partner Violence in Boston, Massachusetts and Washington, DC, 2004 (ICPSR 4570)

Released/updated on: 2008-09-26
Geographic coverage: District of Columbia, United States, Massachusetts, Boston
Time period: 2004-02-01--2004-09-01

The overall goals of this project were to develop a clear theoretical understanding of coercive control and to develop a measure of "nonviolent coercive control" for use in the measurement of intimate partner violence (IPV). The psychometric properties of the newly developed coercive control measure were assessed between February and September 2004 in a total sample of 757 that included 302 males and 448 females from the metropolitan Washington, DC, and Boston areas. Of this sample, 139 reporting IPV victimization only, 39 reported IPV perpetration only, 245 reported both IPV victimization and perpetration, and 334 reported neither IPV victimization nor perpetration.

Respondents were recruited from community agencies involving identified IPV victims and perpetrators, agencies providing non-IPV services to demographically similar participants, community college settings, and general public community settings, e.g., fast food restaurants. The sample was a convenience, not a representative, sample. Selection criteria included the following: (1) involvement in an intimate partner relationship within the past 12 months, and (2) being 18 years of age or older. Respondents were excluded if they exhibited signs of intoxication or other indications of a lack of coherence sufficient to complete the survey.

Both data files contain demographic information. Respondents were asked several series of questions including those pertaining to demands received from their partner, whether their partner did anything to find out if the respondent had done what the partner had demanded, if their partner made them feel the partner might do something if the respondent did not do what the partner wanted, and whether they had done certain things when their partner demanded something. Respondents were then asked the same series of questions conversely. Respondents were read a statement and asked how often they felt this way in the past month, asked whether in the last 12 months they had experienced certain physical abuse or abused their partner physically, and they were asked whether in the last 12 months they had experienced certain types of emotional abuse or had abused their partner emotionally. Respondents were read a series of statements regarding their relationships with people in general and asked to tell whether the statement was true or false, asked how often they had experienced problems in response to a trauma, and asked how likely their partner might attempt to abuse the respondent in specific ways in the next year.

Curated

Development of a New Measure of Adolescent Dating Aggression (ADA): National Norms with a Focus on Marginalized Youth, United States, 2019-2020 (ICPSR 37664)

Released/updated on: 2023-03-30
Geographic coverage: United States
Time period: 2019-02-01--2020-12-01

This study collection was formed from two distinct data collection periods and respondent samples to test and validate a newly formed measure regarding adolescent dating abuse (ADA). The new measure named MARSHA (Measure of Adolescent Relationship Harassment and Abuse) reflects ADA from the both the perspectives of victim and perpetrator through the use of 39 pairs of questions on the topics of physical, sexual, emotional, and cyber abuse. The hope for this study was to allow researchers, clinicians, and practitioners, in a wide variety of settings and for multiple purposes, ability to assess the prevalence of ADA in a nation, state or neighborhood; conducting etiological research on ADA; evaluating ADA prevention programs; or screening youth for ADA in clinical or criminal justice settings.

Curated

Disturbed Violent Offenders in New York, 1985 (ICPSR 9325)

Released/updated on: 2006-01-12
Geographic coverage: United States, New York (state)
This data collection was designed to investigate the relationship between mental illness and violent involvement over an offender's criminal career and to develop a typology of violent offenders that takes into account both mental health history and substance use history. The collection is organized so that data for the violent offender cohort can be matched with records of offender mental health history, substance abuse history, and criminal career history. The offenders were convicted of statutorily-defined "violent offenses." Included in the collection are variables concerning conviction offenses, intoxication status, victim-offender relationship, injury result, type of violence, employment, marital status, gender, and race. The criminal history file contains variables on dates of arrest or juvenile contacts. The mental history file includes dates of entry and types of mental health services received.
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Documentation of Resident to Resident Elder Mistreatment in Residential Care Facilities, New York City, 2009-2013 (ICPSR 35649)

Released/updated on: 2017-06-29
Geographic coverage: New York City, United States, New York (state)
Time period: 2009-07-01--2013-03-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The purpose of this study was to investigate violence and aggression committed by nursing home residents that is directed toward other residents, referred to here as resident-to-resident elder mistreatment (R-REM). Resident-to-resident mistreatment (R-REM) was defined as: negative and aggressive physical, sexual, or verbal interactions between long term care residents, that in a community setting would likely be construed as unwelcome and have high potential to cause physical or psychological distress in the recipient.

The goals of this project were to: enhance institutional recognition of R-REM; examine the convergence of R-REM reports across different methodologies; identify the most accurate mechanism for detecting and reporting R-REM; develop profiles of persons involved with R-REM by reporting source; investigate existing R-REM policies, and; develop institutional guidelines for reporting R-REM episodes. Also, the project team sought to answer the following research questions: (1) Will the reporting of R-REM differ by source? (2) Which reporting methods will show the highest level of convergence and accuracy in reporting? (3) What resident characteristics or profiles will predict R-REM across the differing reporting sources? (4) What are the existing guidelines and/or institutional policies for reporting R-REM? To achieve these goals, the researcher conducted this study over a two week period in five urban and five suburban New York City facilities. Resident-to-resident abuse information was derived from five sources: (1) resident interviews (2) staff informants (3) observational data (behavior sheets) (4) resident chart reviews (5) incident and accident reports.

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Simple Crosstabs

Dynamic, Graph-Based Risk Assessments for the Detection of Violent Extremist Radicalization Trajectories Using Large Scale Social and Behavioral Data, United States, Canada, United Kingdom, Germany, 1994-2020 (ICPSR 38135)

Released/updated on: 2022-01-13
Geographic coverage: Canada, United States, United Kingdom, Germany
Time period: 1994-01-01--2020-01-01

This project examines the trajectory of radicalization of jihadists and Incels with two broad objectives in mind. First, to develop new integrated computational technology that can mine, monitor, and screen for the occurrence of behaviors associated with dangerously escalating extremism in large heterogenous databases and provide early warnings of individuals or groups on behavioral trajectories toward extremist violence. Second, to harness data science methodologies to enable rapid, semi-automated support for law enforcement analysts and social science researchers to produce structured behavioral indicator profiles from text sources.

The study operated from the premise that being that violent extremists are a rare, complex phenomenon, it is futile to search for a profile of extremism. Rather, it is better to focus on explaining how people come to embrace violent extremism. This path, referred to here as a radicalization trajectory, implies that an arc exists leading the perpetrator from entertaining extremist ideas to action, and that there is a somewhat predictable pathway from a normal, if perhaps angry state, to the perpetration of a violent attack in the name of the ideology. Two teams were combined to analyze radicalization trajectories: data collection and analysis led by Brandeis University and technology development led by Colorado State University (CSU).

The questions revolving around the technological development were as follows: Can tools that rigorously examine and account for the activities of close associates better predict the likelihood that an individual would engage in violent extremism? Which risk assessment indicators for violent extremism in the extant literature are detectable via automated or semi-automated technologies, and what databases and datasets must be integrated to facilitate this detection? Can computationally efficient tools be used to mine these databases for the specific purposes of monitoring and screening for individuals and small groups posing a significant risk for violence?

Users should refer to the data collection notes field below for additional information about study citation.

Curated

Effective Methods to Assess Exposure to Violence and Victimization Among American Indian and Alaska Native Youth: The Tribal Youth Victimization Study (TYVS), United States, 2019 (ICPSR 37945)

Released/updated on: 2021-10-28
Geographic coverage: United States, New Mexico, Alaska
Time period: 2019-03-01--2019-09-30
The purpose of the Tribal Youth Victimization Study (TYVS) was to develop and test survey research methods to assess American Indian (AI) and Alaska Native (AN) youth exposure to violence and youth victimization and to identify the factors of the exposure to victimization and its impact. The American Indian Development Associates, (AIDA) LLC conducted the study in partnership with several tribal communities and organizations. The goal is to develop a research strategy and survey instrument for collecting information on the violence and victimization experiences of American Indian and Alaska Native youth in tribal communities and other settings throughout the country. The study purpose is to determine and pilot test the tools and methods for conducting a future national level study. The data will be used to guide survey development, protocols and administration in tribal and other settings. This study included five (5) required tasks that framed the approach, methods, approvals, and deliverables, divided into three stages focused on three distinct phases - instrumentation, cognitive testing, and pilot testing. Phase 1 focused on development of the survey and the methods for survey administration to be tested. No data was collected during Phase 1 and was exempted from IRB review by the University of Nevada Las Vegas Human Subjects Biomedical Review Board. Phase 2 focused on testing recruitment methods and cognitive testing of the draft survey instrument. Phase 3 focused on pilot test site recruitment, pilot testing a revised version of the survey instrument, testing of three modes of administration, and testing alternative approaches to incentives.
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Effect of Procedural Justice in Spouse Assault in Milwaukee, Wisconsin, 1987-1989 (ICPSR 20343)

Released/updated on: 2008-04-17
Geographic coverage: Milwaukee, United States, Wisconsin
Time period: 1987-01-01--1989-01-01
The purpose of the research project was to examine the extent to which the perception of procedural fairness by suspects arrested for spouse assault effectively inhibited their subsequent violence. The data for this study were collected for the MILWAUKEE DOMESTIC VIOLENCE EXPERIMENT, 1987-1989 (ICPSR 9966), which was conducted from April 1987 to August 1988. In this experiment, all cases of misdemeanor domestic battery where probable cause to arrest existed were randomly assigned to one of three conditions: (1) warning with no arrest, (2) arrest with a brief detention period (average of 3 hours), and (3) arrest with a longer detention period (average of 11 hours). Variables include demographic and background information, as well as descriptive variables pertaining to the domestic violence incident.
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Effects of Prior Record in Sentencing Research in a Large Northeastern City, 1968-1979: [United States] (ICPSR 8929)

Released/updated on: 1992-02-16
Geographic coverage: United States
Time period: 1968-01-01--1979-01-01
This data collection examines the impact of defendants' prior criminal records on the sentencing of male and female defendants committing violent and non-violent crimes. The collection also provides data on which types of prior records most influenced the sentencing judges. Variables deal specifically with the defendant, the judge and the characteristics of the current case. Only cases that fell into one of 14 categories of common offenses were included. These offenses were murder, manslaughter, rape, robbery, assault, minor assault, burglary, auto theft, embezzlement, receiving stolen property, forgery, sex offenses other than rape, drug possession, and driving while intoxicated.
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Efficacy of Court-Mandated Counseling for Domestic Violence Offenders in Broward County, Florida, 1997-1998 (ICPSR 21901)

Released/updated on: 2011-03-31
Geographic coverage: United States, Florida
Time period: 1997-05-01--1998-09-30
The ultimate purpose of the study was to test whether court-mandated counseling reduced the likelihood of repeat violence by men convicted of misdemeanor domestic violence. Researchers also tested the underlying theory arising from the reanalyses of the Minneapolis experiment (MINNEAPOLIS INTERVENTION PROJECT, 1986-1987 [ICPSR 9808]) and Spouse Assault Replication Programs (SARPs). This theory proposes that having a stake in conformity predicts when an intervention (whether an arrest or court-mandated treatment) will be effective in reducing the likelihood of subsequent violence. The study used a classical experimental design to test whether courts can effect change in men convicted of misdemeanor domestic violence by mandating them to participate in a spouse abuse abatement program (SAAP). All men convicted of misdemeanor domestic violence in Broward County, Florida, between May 1 and September 30, 1997, were randomly assigned to either an experimental or control group. The only exceptions were for those couples in which either defendant or victim did not speak English or Spanish; either defendant or victim was under 18 years of age; the defendant was severely mentally ill; or the judge, at the time of sentencing, allowed the defendant to move to another jurisdiction and serve his probation through mail contact. Of the remaining 404 defendants, men in the control group were sentenced to 1 year's probation and men in the experimental group were sentenced to 1 year's probation and mandated into one of the five local SAAPs. In an effort to determine the true amount of change in individuals undergoing court-mandated counseling, the researchers included various measures from several sources. Each batterer was interviewed at time of adjudication and again six months after adjudication. The victim was also interviewed at adjudication and 6 and 12 months after adjudication. Standardized measures with known reliability were used when possible. Probation records and computer checks with the local police for all new arrests were used to track the defendants for one year after adjudication. The defendant interviews asked questions to assess the defendant's stake in conformity including those dealing with his relationship to the victim, his employment, his residential stability and his relationship to others. Included in these interviews were questions from an abbreviated version of the Crowne-Marlowe Social Desirability Scale, the Shortened Attitudes Towards Women Scale, the Inventory of Beliefs About Wife Beating (IBWB), and the Revised Conflict Tactics Scale. The data file also includes questions dealing with offenders' perceptions of the fairness of the criminal justice process they had just been through, who they believed was responsible for the instant offense that brought them to court, and whether they felt coerced into the batterer's program. The victim interviews were similar to the defendants though most of the questions asked the victim to provide information about the offender and his relationship with her. The woman was also asked to provide information on her work history, who she regularly spent time with, whether she had spoken with family, friends, and neighbors about her relationship with the offender and, if she had, if they were critical of her or her partner's actions in the particular incident leading to this court case. Similar to the offender's interviews, victims were asked about the history of violence in their home of origin and the particular incident bringing the offender to court. The probation reports provided information on the offender's criminal history, behavior in the community for the year while under supervision, and compliance with the batterer program.
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Evaluating a Collaborative Intervention Between Health Care and Criminal Justice in Harris County, Texas, 2001-2002 (ICPSR 3542)

Released/updated on: 2005-11-04
Geographic coverage: United States, Texas
Time period: 2001-01-01--2002-01-01
This study sought to evaluate the Advocacy-Case Management Intervention designed to increase victim safety and the efficiency of the protection order process. The intervention was performed by registered nurses as part of a collaborative partnership between justice and health care agencies. A two-group experimental design using random assignments to control and experimental groups was used. The study subjects were women who qualified for a civil protection order against a sexual intimate. These women were contacted via telephone for initial interviews, as well as for three-, six-, 12-, and 18-month follow-up interviews. Variables were obtained from several instruments used to measure victim safety-seeking behaviors and levels of violence and harassment.
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Evaluation of a Multi-Faceted, U.S. Community-Based, Muslim-Led Countering Violent Extremism (CVE) Program, Montgomery County, Maryland, 2014-2015 (ICPSR 36642)

Released/updated on: 2018-04-10
Geographic coverage: United States, Montgomery County, Maryland
Time period: 2014-01-01--2015-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

This study attempted to be the first of its kind to evaluate a U.S. community-based Countering Violent Extremism (CVE) Program. Conducted in Montgomery County, Maryland, the evaluation judged the relative effectiveness of various community programs on CVE-relevant outcomes. The collection contains 2 SPSS data files, Archive-ready, survey 1st phase.sav (n=67; 292 variables) and Archive-ready, survey final phase.sav (n=421; 232 variables). The qualitative data are not available as part of this data collection at this time.

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Evaluation of CeaseFire, a Chicago-based Violence Prevention Program, 1991-2007 (ICPSR 23880)

Released/updated on: 2015-02-25
Geographic coverage: United States, Chicago, Illinois
Time period: 1991-01-01--2006-12-01, 1998-02-01--2006-04-01, 2006-05-01--2007-08-01, 2006-09-01--2007-02-01, 2007-04-05--2007-07-19

This study evaluated CeaseFire, a program of the Chicago Project for Violence Prevention. The evaluation had both outcome and process components.

The outcome evaluation assessed the program's impact on shootings and killings in selected CeaseFire sites. Two types of crime data were compiled by the research team: Time Series Data (Dataset 1) and Shooting Incident Data (Dataset 2). Dataset 1 is comprised of aggregate month/year data on all shooting, gun murder, and persons shot incidents reported to Chicago police for CeaseFire's target beats and matched sets of comparison beats between January 1991 and December 2006, resulting in 1,332 observations. Dataset 2 consists of data on 4,828 shootings that were reported in CeaseFire's targeted police beats and in a matched set of comparison beats for two-year periods before and after the implementation of the program (February 1998 to April 2006).

The process evaluation involved assessing the program's operations and effectiveness. Researchers surveyed three groups of CeaseFire program stakeholders: employees, representatives of collaborating organizations, and clients.

The three sets of employee survey data examine such topics as their level of involvement with clients and CeaseFire activities, their assessments of their clients' problems, and their satisfaction with training and management practices. A total of 154 employees were surveyed: 23 outreach supervisors (Dataset 3), 78 outreach workers (Dataset 4), and 53 violence interrupters (Dataset 5).

The six sets of collaborating organization representatives data examine such topics as their level of familiarity and contact with the CeaseFire program, their opinions of CeaseFire clients, and their assessments of the costs and benefits of being involved with CeaseFire. A total of 230 representatives were surveyed: 20 business representatives (Dataset 6), 45 clergy representatives (Dataset 7), 26 community representatives (Dataset 8), 35 police representatives (Dataset 9), 36 school representatives (Dataset 10), and 68 service organization representatives (Dataset 11).

The Client Survey Data (Dataset 12) examine such topics as clients' involvement in the CeaseFire program, their satisfaction with aspects of life, and their opinions regarding the role of guns in neighborhood life. A total of 297 clients were interviewed.

Curated

Evaluation of Gender Violence and Harassment Prevention Programs in Middle Schools in Cleveland, Ohio, 2006-2007 [United States] (ICPSR 22660)

Released/updated on: 2010-11-12
Geographic coverage: United States, Ohio, Cleveland
Time period: 2006-11-01--2007-05-01
The study was designed to help increase the capacity of programs to prevent gender violence and harassment (GV/H) among middle school youth. The long-term goal of the study was to help prevent intimate partner violence, sexual violence, and sexual harassment by employing rigorous methods to evaluate strategies for altering violence-supportive attitudes and norms of youth. Specifically, the study was structured to evaluate the relative effectiveness of common approaches to youth GV/H prevention programming (in terms of knowledge, attitudes, intended behavior, behavior, and emotional safety of youth participants) for one of the youngest populations ever studied in this area. In a longitudinal randomized controlled trial study, two five-lesson curricula were created to address gender violence and harassment (GV/H) in middle schools, and classrooms were assigned randomly to treatment and control groups. Treatment 1 was an interaction-based curriculum focused on the setting and communication of boundaries in relationships, the determination of wanted and unwanted behaviors, and the role of the bystander as intervener. Treatment 2 was a law and justice curriculum focused on laws, definitions, information, and data about penalties for sexual assault and sexual harassment. The control group did not receive either treatment. Pencil-and-paper surveys were designed for students to complete, and were administered either by a member of the research team or by teachers who were trained by a member of the research team in proper administration processes. Data were collected from three inner-ring suburbs of Cleveland, Ohio, from November 2006 to May 2007. Surveys were distributed at three different times: immediately before the assignment to one of the three study conditions, immediately after the treatment (or control condition) was completed, and 5-6 months after their assignment to one of the three study conditions. The data contain responses for 1,507 students over 3 waves. Additionally, researchers used multiple imputations for this dataset which resulted in 5 imputed datasets for each record for a total of 7,535 cases in the data file. The data have 697 variables, including from such questions as whether someone had ever or in the past 6 months done something to the respondent such as slapped or scratched the respondent, hit the respondent, or threatened the respondent. Additionally, respondents were asked if they had done these same actions to someone else. Respondents were also asked a series of questions regarding whether they had ever been sexually harassed by someone or if they had sexually harassed someone themselves. Next, respondents were asked to rate whether they agreed with a series of statements such as "It is all right for a girl to ask a boy out on a date", "If you ignore sexual harassment, more than likely it will stop", and "Making sexual comments to a girl is wrong". Students were then asked to indicate whether a series of statements were true or false, such as "If two kids who are both under the age of 16 have sex, it is not against the law" and "If a person is not physically harming someone, then they are not really abusive". Respondents were then asked to read three scenarios and indicate how they would respond in that scenario. Also, students indicated how likely they would be to react in specified ways to a prepared statement. Data also provide demographic information such as age, gender, and ethnic/racial background, as well as variables to generically identify school district, school, and class period.
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Evaluation of the Defending Childhood Demonstration Program in Six States, 2004-2014 (ICPSR 36244)

Released/updated on: 2017-12-12
Geographic coverage: Montana, Tennessee, South Dakota, Ohio, North Dakota, Boston
Time period: 2004-01-01--2014-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

This study was designed to evaluate the Defending Childhood Demonstration Program, a nationwide initiative to address children's exposure to violence. The Defending Childhood Demonstration Program sought to prevent children's exposure to violence, mitigate the negative impact of such exposure when it occurred, and develop and share knowledge about children's exposure to violence. The six sites chosen for the program evaluation were located in Boston, MA; Chippewa Cree Tribe, Rocky Boy's Reservation, MT; Cuyahoga County, OH; Grand Forks, ND; Rosebud Sioux Tribe, SD; and Shelby County, TN.

The evaluation consisted of a process evaluation and an impact evaluation. The impact evaluation examined the influence of Defending Childhood through a professional survey, a community survey, and analysis of core community indicators. The process evaluation portion of this study, which consists of qualitative data, is not available at this time due to confidentiality concerns.

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Evaluation of the Effectiveness and Sustainability of the Olweus Bullying Prevention Program (OBPP) in Increasing School Safety for Urban Low-Income Middle Schools, Virginia, 2011-2018 (ICPSR 37456)

Released/updated on: 2025-03-13
Geographic coverage: United States
Time period: 2011-02-01--2018-06-01
This NIJ-funded project extended an evaluation of the Olweus Bullying Prevention Program (OBPP) conducted as part of a project funded by the Centers for Disease Control and Prevention (CDC). The OBPP is a comprehensive school-based program designed to prevent youth violence and bullying by improving school climate. The CDC-funded project used a multiple baseline experimental design that randomized the order and timing of implementing the OBPP in three urban public middle schools in the southeastern United States over a five-year period from 2010-2015. The project collected outcome data from random samples of students at the three participating middle schools on their frequency of aggression and victimization, peer factors related to aggression, and school climate variables every three months, and obtained ratings of student's frequency of aggression and victimization from teachers. The NIJ-funded project extended the CDC-funded project by continuing the implementation of OBPP in schools that were already receiving the program, implementing OBPP in the remaining school that served as the control school for the Virginia Commonwealth University - Violence Prevention Project (VCU-VPP), and collecting an additional 10 waves of data from 2015 to 2018. The dataset included in this study includes data from both the CDC and NIJ-funded projects across 29 waves of data collection from 2011 to 2018.
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Evaluation of the Strategic Approaches to Community Safety Initiative (SACSI) in Winston-Salem, North Carolina, 1998-2001 (ICPSR 20362)

Released/updated on: 2008-02-28
Geographic coverage: North Carolina, United States, Winston-Salem
Time period: 1998-01-01--2001-01-01
The purpose of this study was to perform an initial evaluation of key aspects of the Winston-Salem Strategic Approaches to Community Safety Initiative (SACSI). The research team administered a SACSI Process Questionnaire to the SACSI Core Team and Working Group during the fall of 2000. Part 1, SACSI Core Team/Working Group Questionnaire Data, provides survey responses from 28 members of the Working Group and/or Core Team who completed the questionnaires. Variables in Part 1 were divided into four sections: (1) perceived functioning of the Core Team/Working Group, (2) personal experience of the group/team member, (3) perceived effectiveness or ineffectiveness of various elements of the SACSI program, and (4) reactions to suggestions for increasing the scope of the SACSI program. The research team also conducted an analysis of reoffending among SACSI Offenders in Winston-Salem, North Carolina, in order to assess whether criminal behavior changed following the implementation of the Notification Program that was conducted with offenders on probation to communicate to them the low tolerance for violent crime in the community. To determine if criminal behavior changed following the program, the research team obtained arrest records from the Winston-Salem Police Department of 138 subjects who attended a notification session between September 9, 1999, and September 7, 2000. These records are contained in Part 2, Notification Program Offender Data. Variables in Part 2 included notification (status and date), age group, prior record, and 36 variables pertaining to being arrested for or identified as a suspect in nine specific types of crime.
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Evaluation of the Tribal Strategies Against Violence (TSAV) Initiative in Four Tribal Sites in the United States, 1995-1999 (ICPSR 4080)

Released/updated on: 2005-03-15
Geographic coverage: Montana, United States, Oklahoma, North Dakota, Michigan
Time period: 1995-01-01--1999-01-01
This study evaluated the Tribal Strategies Against Violence (TSAV) Initiative. The TSAV was a federal-tribal partnership, lasting from 1995 to 1999, designed to develop comprehensive strategies in tribal communities to reduce crime, violence, and substance abuse. This study involved four of the seven TSAV sites: the Chickasaw Nation in Oklahoma, Fort Peck Assiniboine and Sioux Tribes in Montana, the Grand Traverse Band of Ottawa and Chippewa Indians in Michigan, and the Turtle Mountain Band of Chippewa Indians in North Dakota. A survey of TSAV stakeholders at the four sites was conducted in the summer and fall of 1999. The objectives of the survey were to gauge TSAV stakeholders' perceptions about the following: (1) the serious crime, violence, and quality of life issues in each community and the extent to which the local TSAV initiative had addressed those issues, (2) the intent and ultimate outcomes of the TSAV program, (3) obstacles to successful implementation of TSAV activities, and (4) decision-making processes used in planning and implementing TSAV locally. Offense data were also gathered at the Fort Peck site for 1995 to 1998 and at the Grand Traverse Band site for 1997 to 1999.
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Evaluation of the Weed and Seed Initiative in the United States, 1994 (ICPSR 6789)

Released/updated on: 2005-11-04
Geographic coverage: United States
The Department of Justice launched Operation Weed and Seed in 1991 as a means of mobilizing a large and varied array of resources in a comprehensive, coordinated effort to control crime and drug problems and improve the quality of life in targeted high-crime neighborhoods. In the long term, Weed and Seed programs are intended to reduce levels of crime, violence, drug trafficking, and fear of crime, and to create new jobs, improve housing, enhance the quality of neighborhood life, and reduce alcohol and drug use. This baseline data collection effort is the initial step toward assessing the achievement of the long-term objectives. The evaluation was conducted using a quasi-experimental design, matching households in comparison neighborhoods with the Weed and Seed target neighborhoods. Comparison neighborhoods were chosen to match Weed and Seed target neighborhoods on the basis of crime rates, population demographics, housing characteristics, and size and density. Neighborhoods in eight sites were selected: Akron, OH, Bradenton (North Manatee), FL, Hartford, CT, Las Vegas, NV, Pittsburgh, PA, Salt Lake City, UT, Seattle, WA, and Shreveport, LA. The "neighborhood" in Hartford, CT, was actually a public housing development, which is part of the reason for the smaller number of interviews at this site. Baseline data collection tasks included the completion of in-person surveys with residents in the target and matched comparison neighborhoods, and the provision of guidance to the sites in the collection of important process data on a routine uniform basis. The survey questions can be broadly divided into these areas: (1) respondent demographics, (2) household size and income, (3) perceptions of the neighborhood, and (4) perceptions of city services. Questions addressed in the course of gathering the baseline data include: Are the target and comparison areas sufficiently well-matched that analytic contrasts between the areas over time are valid? Is there evidence that the survey measures are accurate and valid measures of the dependent variables of interest -- fear of crime, victimization, etc.? Are the sample sizes and response rates sufficient to provide ample statistical power for later analyses? Variables cover respondents' perceptions of the neighborhood, safety and observed security measures, police effectiveness, and city services, as well as their ratings of neighborhood crime, disorder, and other problems. Other items included respondents' experiences with victimization, calls/contacts with police and satisfaction with police response, and involvement in community meetings and events. Demographic information on respondents includes year of birth, gender, ethnicity, household income, and employment status.
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Evaluation of Violence Against Women With Physical Disabilities in Michigan, 2000-2001 (ICPSR 3414)

Released/updated on: 2006-03-30
Geographic coverage: United States, Michigan
Time period: 2000-01-01--2001-01-01
In the past few years it has become alarmingly clear that women with disabilities are at an extremely high risk for emotional, sexual, and physical assault. The Developmental Disabilities Institute at Wayne State University, in collaboration with the United Cerebral Palsy Association in Michigan, conducted a one-year study to investigate the prevalence and correlates of, and service system capacity related to, domestic abuse among women with physical disabilities in Michigan. The study aimed to address the following research questions: (1) What is the prevalence of domestic violence among a sample of women with physical disabilities? (2) What potential factors for domestic violence exist among women with physical disabilities? and (3) What is the capacity of existing support programs (e.g., safe houses, shelters, and service agencies) to assist women with physical disabilities? The population for this study was women over the age of 18 who had physical disabilities. Consistent with the work of other researchers, physical disabilities in this study were defined as those disabilities that result in functional impairment, such as cerebral palsy, post-polio syndrome, spina bifida, amputation, rheumatic conditions, multiple sclerosis, spinal cord injury, traumatic brain injury, visual impairment, hearing impairment, and stroke. A sample of 177 women was recruited through several mechanisms. To address the question of domestic abuse prevalence, the women participating in the study were first asked to complete a brief questionnaire addressing demographic characteristics and their experience with domestic violence (Part 1, Screening Interview Data). Fifty-six percent (100) of the 177 women interviewed indicated a positive history of abuse at their initial screening. In order to address the second research question about the correlates of abuse, this subsample of 100 women was invited and encouraged to participate in the second phase of the research, which involved a more extensive interview (Part 2, Abuse Interview Data). The interview used was based on a protocol developed by Nosek (1995) that addressed demographic characteristics, social networks, and abuse history. Variables in Parts 1 and 2 include type of disability, type of personal assistance needed, and whether the respondent was ever physically, emotionally, or sexually abused. Part 2 also contains variables on sources of monthly income, who perpetrated the abuse, the abuser's gender, how long the victim knew the abuser, whether the victim sought assistance from a domestic violence program or shelter, and a description of the worst incident of physical abuse. Demographic variables in Parts 1 and 2 include ethnicity, age, employment status, and marital status.
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Evaluation of Violence Prevention Programs in Four New York City Middle Schools, 1993-1994 (ICPSR 2704)

Released/updated on: 2005-11-04
Geographic coverage: United States, New York (state)
Time period: 1993-02-01--1994-06-01
This research project sought to evaluate the impact of broad-based multifaceted violence prevention programs versus programs that have a more limited focus. Two specific programs were evaluated in four New York City middle schools. The more limited program used Project S.T.O.P.(Students Teaching Options for Peace), a conflict resolution and peer mediation training program. The full multi-faceted program combined Project S.T.O.P. with Safe Harbor, a program that provided victimization counseling and taught violence prevention. The effects of this combined program, offered in three of the middle schools, were compared to those of just the Project S.T.O.P. program alone in one middle school. To study the program models, researchers used a quasi-experimental pre-post design, with nonequivalent comparison groups. Questionnaires were given to students to assess the impact of the two programs. Students were asked about their knowledge and use of prevention programs in their schools. Data were also collected on students' history of victimization, such as whether they were ever attacked at school, stolen from, mugged, or threatened with a weapon. Students were also asked about their attitudes toward verbal abuse, victims of violence, and conditions when revenge is acceptable, and their exposure to violence, including whether they knew anyone who was sexually abused, beaten, or attacked because of race, gender, or sexual orientation. Additional questions covered students' use of aggressive behaviors, such as whether they had threatened someone with a weapon or had beaten, slapped, hit, or kicked someone. Data were also gathered on the accessibility of alcohol, various drugs, weapons, and stolen property. Demographic variables include students' school grade, class, sex, number of brothers and sisters, and household composition.
Curated

An Examination of Child Support, Debt and Prisoner Reentry Using the SVORI Adult Male Dataset, 2004-2007 (United States) (ICPSR 36066)

Released/updated on: 2018-01-23
Geographic coverage: Indiana, United States, Oklahoma, Maine, Kansas, Washington, South Carolina, Pennsylvania, Iowa, Missouri, Ohio, Maryland, Nevada
Time period: 2004-01-01--2011-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

This study is a secondary analysis of data from ICPSR Study Number 27101, Serious and Violent Offender Reentry Initiative (SVORI) Multi-site Impact Evaluation, 2004-2011 [United States]- specifically the adult male dataset -to examine the associations among child support obligations, employment and reentry outcomes. The study addressed the following research questions:

  1. Are the demographic, criminal justice and employment-related characteristics of incarcerated men with child support orders significantly different in any important way from incarcerated males without child support orders?
  2. Did SVORI clients receive more support and services related to child support orders and modification of debt after release from prison compared to non-SVORI participants?
  3. Does having legal child support obligations decrease the likelihood of employment in later waves, net of key demographic and criminal justice history factors?
  4. How does employment influence the relationship between child support debt and recidivism? and
  5. Is family instrumental support a significant predictor of reduced recidivism or increased employment in models assessing the relationship between child support obligations, employment and recidivism?

The study includes one document (Syntax_ChildSupport_Reentry_forICPSR_2012-IJ-CX-0012.docx) which contains SPSS and Stata syntax used to create research variables.

Curated

Examining Radicalization's Risk and Protective Factors: A Case-Control Study of Violent Extremists, Non-Violent Criminal Extremists, Non-Offending Extremists, and Regular Violent Offenders, United States, 1990-2020 (ICPSR 39026)

Released/updated on: 2025-08-14
Geographic coverage: United States
Time period: 1990-01-01--2020-01-01

This project examined the multidimensional pathways that led to extremism and extremist behaviors. The focus of the research was to examine risk and protective factors that either directly, or in combination, interact to increase or mitigate the risk of radicalization and terrorism.

This project comparatively examined the presence/absence of risk and protective factors across three groups:

  1. extremist individuals who committed ideologically motivated violent (fatal and non-fatal violent attacks) and nonviolent (financial) crimes
  2. extremists who did not break the law and only engaged in legal extremist activities
  3. persons who committed non-ideological motivated homicides and other violent attacks

Thus, researchers accomplished four major goals/objectives in this project. First, although there has been a good amount of radicalization and risk assessment-related research on risk and protective factors, researchers expanded this work with comparative analyses that have not been previously explored. Second, few studies compared violent or nonviolent criminal extremists to nonoffending extremists or other types of violent offenders. Third, researchers used a case-control approach to provide an empirically robust understanding of categorical differences across groups that have not yet been achieved. Fourth, researchers examined differences in participation of warning behaviors across the groups studied.

The data file includes 971 cases.

Curated

Experience of Violence in the Lives of Homeless Persons: The Florida Four City Study, 2003-2004 (ICPSR 20363)

Released/updated on: 2010-11-22
Geographic coverage: United States, Orlando, Florida, Tampa, Jacksonville, Miami
Time period: 2003-01-01--2004-01-01
The primary goal of this study was to develop an understanding of the role of violence in the lives of homeless women and men. The objectives were to determine how many women and men have experienced some form of violence in their lives either as children or adults, the factors associated with experiences of violence, the consequences of violence, and the types of interactions with the justice system. The survey sample was comprised of about 200 face-to-face interviews with homeless women in each of four Florida cities (Jacksonville, Miami, Orlando, and Tampa). In all, 737 women were interviewed. In addition, 91 face-to-face interviews with homeless men were also conducted only in Orlando. For Part 1 (Female Interviews), the data include information related to the respondent's living conditions in the past month, as well as experiences with homelessness, childhood violence, adult violence, forced sexual situations, and stalking. Additional variables include basic demographic information, a self-report of criminal history, information related to how the respondent spent her days and evenings, and the physical environment surrounding the respondent during the day and evening. For Part 2 (Male Interviews), the data include much of the same information as was collected in Part 1. Information from Part 1 not included in Part 2 primarily includes questions pertaining to experience with forced sexual situations, and questions related to pregnancy and children.
Curated

Exploring the Social Networks of Homegrown Violent Extremist Military Veterans, United States, 2003-2019 (ICPSR 39021)

Released/updated on: 2025-12-02
Geographic coverage: United States
Time period: 2003-01-01--2019-01-01

This study aimed to comparatively explore the risk factors of a sample of homegrown violent extremist (HVE) civilians (n=30) and veterans (people with a military background; n=30), who enacted or planned an HVE event between 2003-2019, as informed by people from their various social networks. A HVE event is defined as acts of terrorism within the context of ideologically motivated violence or plots (Southers, 2013). For veterans these ideologies include White Supremacy/Neo-Nazi/Anti-Muslim/Anti-LGBTQ, Anti-Government, Radical Islam, and Black Nationalism. A group of non-HVE veterans (n=10) served as a comparison group. For both HVE and non-HVE veterans, this investigation was conducted across the military lifecycle (premilitary, military, postmilitary), and included an exploration of protective factors against HVE across the military lifecycle for the non-HVE comparison group.

The collection includes three relational data files with information about demographics (DS1), radical experience (DS2), and military experience (DS3). A fourth dataset tabulates the type of social network informant for each HVE civilian, HVE veteran, and non-HVE veteran (DS4).

Curated

Exposure to Violence, Trauma, and Juvenile Court Involvement: A Longitudinal Analysis of Mobile Youth and Poverty Study Data, Mobile, Alabama, 1998-2011 (ICPSR 37495)

Released/updated on: 2020-11-24
Geographic coverage: United States, Alabama, Mobile
Time period: 1998-01-01--2011-01-01
This project consists of secondary analysis material (syntax only, no data). The original study that the material pertains to is an examination of predominantly African American adolescents who live in extreme poverty. The study suggested that exposure to violence is positively related to involvement in the juvenile court system, and partially mediated by psychological factors, particularly hopelessness; thus, practitioners should take care to target more than just traumatic stress as a result of exposure to violence in African American impoverished youth.
Curated

Family, Peer and Neighborhood-level Protective Factors within the Developmental Assets Framework: A Longitudinal Analysis of Behavioral Adaptation for Urban Youth Exposed to Community Violence in Chicago, 1994-2002 (ICPSR 22661)

Released/updated on: 2013-01-31
Geographic coverage: United States, Chicago, Illinois
Time period: 1995-01-01--2001-01-01
This study used longitudinal data from 1,114 youth ages 11-16 and their neighborhoods from the Project on Human Development in Chicago Neighborhoods. Generalized estimating equations were used to examine whether baseline interpersonal and neighborhood protective factors predicted behavioral adjustment at waves 2 and 3 among youth who were victims of, witnesses of, or unexposed to violence, controlling for individual and neighborhood-level risks.
Curated

Firearm Legislation and Firearm Violence Across Space and Time, United States, 1970-2012 (ICPSR 36688)

Released/updated on: 2018-05-15
Geographic coverage: United States
Time period: 1970-01-01--2012-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The study constructed a comprehensive, longitudinal dataset of all counties nested within U.S. States from 1970 to 2012. The study's main purpose was to facilitate research that would further understanding on firearm legislation and its impacts on violence. This comprehensive data collection effort included information on firearm legislation implemented across U.S. States over time in combination with multiple measures of firearm-related violence and injury. Moreover, to better understand the conditions under which firearm legislation is more or less effective, incorporation of county characteristics allowed for examination of whether the effectiveness of state-level firearm legislation depends upon particular characteristics of counties. The researchers conducted a secondary analysis utilizing a variety of archived external government and census sources.

The Study's Dataset Include two Stata Files:

  • CJRC_firearms_research.dta (95 Variables, 129,027 Cases)
  • state_law_data.dta (19 Variables, 2,168 Cases)
Curated

Firearms Violence and the Michigan Felony Firearm Law: Detroit, 1976-1978 (ICPSR 8509)

Released/updated on: 2005-11-04
Geographic coverage: Detroit, United States, Michigan
Time period: 1976-01-01--1978-01-01
The purpose of this study was to estimate the impact of the Michigan Firearm Law on the processing of defendants in Detroit's Recorder's Court. Most variables in the study focus on the defendant and on court processing decisions made at different stages. Special attention was given to determining the presence and use of firearms and other weapons in each offense. Variables included are gender and race of the defendant, original charges, type of counsel, amount of bail, felony firearm charged, number of convictions, race of the victim, firearm used, judge, and sentence.
Curated

Firearms, Violence, and Youth in California, Illinois, Louisiana, and New Jersey, 1991 (ICPSR 6484)

Released/updated on: 2005-11-04
Geographic coverage: United States, Illinois, Louisiana, California, New Jersey
Time period: 1991-01-01--1991-04-01
Violence committed by and against juveniles was the focus of this study. Two groups were examined: incarcerated (criminally active) juveniles and students in inner-city high schools, since these youths are popularly considered to engage in and experience violence (especially gun-related violence), to belong to urban street gangs, and to participate in the drug trafficking thought to lead to excessive gun violence. Self-administered questionnaires were completed by 835 male inmates in six correctional facilities and 1,663 male and female students from ten inner-city high schools in California, Illinois, Louisiana, and New Jersey. Data collection took place during January through April of 1991. To maximize response rates, inducements of five dollars were offered to the inmates, Spanish-language versions of the questionnaire were provided to inmates who preferred them, and personal interviews were conducted with inmates whose reading skills were less than sufficient to complete the questionnaire on their own. In four schools, principals permitted the inducements to be offered to students to participate in the study. As with the inmate survey, a Spanish-language version of the questionnaire was provided to students who preferred it. The questionnaires covered roughly the same core topics for both inmates and students. Items included questions on sociodemographic characteristics, school experiences, gun ownership, gun use for several types of firearms, gun acquisition patterns, gun-carrying habits, use of other weapons, gang membership and gang activities, self-reported criminal histories, victimization patterns, drug use, alcohol use, and attitudes concerning guns, crime, and violence. In both questionnaires, the majority of the items covered firearms knowledge, acquisition, and use. The remaining items in the inmate survey primarily covered criminal behavior and, secondarily, victimization histories. In the student survey, these priorities were reversed.
Curated

Gang Involvement in "Rock" Cocaine Trafficking in Los Angeles, 1984-1985 (ICPSR 9398)

Released/updated on: 2006-03-30
Geographic coverage: United States, Los Angeles, California
Time period: 1984-01-01--1985-01-01
The purpose of this data collection was to investigate the possible increase in gang involvement within cocaine and "rock" cocaine trafficking. Investigators also examined the relationships among gangs, cocaine trafficking, and increasing levels of violence. They attempted to determine the effects of increased gang involvement in cocaine distribution in terms of the location of an incident, the demographic profiles of suspects, and the level of firearm use. They also looked at issues such as whether the connection between gangs and cocaine trafficking yielded more drug-related violence, how the connection between gangs and cocaine trafficking affected police investigative processes such as intra-organizational communication and the use of special enforcement technologies, what kinds of working relationships were established between narcotics units and gang control units, and what the characteristics were of the rock trafficking and rock house technologies of the dealers. Part 1 (Sales Arrest Incident Data File) contains data for the cocaine sales arrest incidents. Part 2 (Single Incident Participant Data File) contains data for participants of the cocaine sales arrest incidents. Part 3 (Single Incident Participant Prior Arrest Data File) contains data for the prior arrests of the participants in the cocaine arrest incidents. Part 4 (Multiple Event Incident Data File) contains data for multiple event incidents. Part 5 (Multiple Event Arrest Incident Data File) contains data for arrest events in the multiple event incidents. Part 6 (Multiple Event Incident Participant Data File) contains data for the participants of the arrest events. Part 7 (Multiple Event Incident Prior Arrest Data File) contains data for the prior arrest history of the multiple event participants. Part 8 (Homicide Incident Data File) contains data for homicide incidents. Part 9 (Homicide Incident Suspect/Victim Data File) contains data for the suspects and victims of the homicide incidents. Major variables characterizing the various units of observation include evidence of gang involvement, presence of drugs, presence of a rock house, presence of firearms or other weapons, presence of violence, amount of cash taken as evidence, prior arrests, and law enforcement techniques.