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The Detroit Metro Area Communities Study (DMACS) is a panel survey of Detroit residents aged 18 and older. The original panel of respondents was drawn from an address-based probability sample of all occupied Detroit households in 2016 and has since been refreshed through additional address-based sampling annually. Between January 13, 2025 and March 3, 2025, 3,112 previously enrolled panelists were invited to participate in a self-administered online or interviewer-administered telephone survey.

Topics included: household composition; housing status; perceptions of neighborhood; political trust; challenges; homeownership; homeowner's insurance; stormwater management; flooding; mental health; employment.

The Detroit Metro Area Communities Study (DMACS) is a panel survey of Detroit residents aged 18 and older. The original panel of respondents was drawn from an address-based probability sample of all occupied Detroit households in 2016 and has since been refreshed through additional address-based sampling annually. The 17th survey wave, collected between June 2023 and August 2023, sent 5,000 invitations to a randomly selected address-based refreshment sample of Detroit households and invited 2,873 previously-enrolled panelists to participate in a self-administered online or interviewer-administered telephone survey.

Topics included: housing status; perceptions of neighborhood; social cohesion; community involvement; activism; school quality and performance; parks; safety; policing; mental health; immigration; sources of information; household finances; social connection; employment; and party identification.

The major objective of this project was to investigate photo array composition in order to improve eyewitness identification procedures. Photo array composition involves the fillers, or known-innocent individuals that police add to a photo array so that the perpetrator/suspect (referred to as the "target" in experimental design) does not stand out. An unbiased (fair) photo array contains fillers that match the description of the suspect provided by one or more eyewitnesses. In contrast, in a biased photo array, the suspect stands out from the fillers. Another popular procedure used by police is the showup, when the suspect is presented without any fillers. This project involved all three of these procedures.

This collection contains raw and aggregated data from 12 sets of experiments that investigated different aspects of eyewitness identification, including fair vs. biased lineups, lineup size, distinctive facial features, target-filler similarity, impact of sleep on eyewitness accuracy, memory strength, number of suspects presented, impact of courtroom instructions and expert expertise, and speed and confidence of eyewitness identification. Each experiment set followed a similar general design, with variations based on the purpose and hypotheses of the specific study. United States-based adult participants recruited via SurveyMonkey were asked to complete an online experiment in which they would be presented with a crime vignette and a suspect facial image (created from a faces database), given a distractor task, and then asked to select the suspect from a lineup and rate the confidence level of their decision.

The data were provided to ICPSR in Excel workbook format (41 data files, 3 codebooks) and are available for download as a zipped package. ICPSR has not modified the files from the format in which they were supplied. Data files are organized into subfolders that are named with a short content descriptor and citation of the relevant publication. Unless noted, data files contain a "codes" sheet that explains the variables and experimental condition groups. Articles and theses/dissertations that used each dataset are available under Data-related Publications. Please refer to the ICPSR README for more information.

This study provides cross-sectional data from a nationally representative survey that collected data on public perceptions of artists.

The data were collected in March 2017, August 2019, and April 2022; the development of the survey instrument and results from its pilot test are documented in Novak-Leonard and Skaggs (2017). In each wave, a core set of questions is repeated while additional wave-specific questions are uniquely added on matters germane to arts policy within the United States.

Each survey wave has been administered through the AmeriSpeak Panel, a probability-based panel designed to be representative of the U.S. household population, operated by NORC at the University of Chicago. The survey was offered in both in English and Spanish and fielded through both a web-based survey and phone interviews. The data are weighted using sampling weights provided by AmeriSpeak, accounting for age, gender, U.S. Census geographic divisions, education levels, and race/ethnicity. In 2017, the resulting sample was 1,110 adult respondents (age 18 and older); in 2019, the resulting sample contained 1,002 adult respondents; and, in 2022, 1,033 adult respondents.

The purpose of this project was to develop a culturally relevant crime seriousness index specific to the Sisseton-Wahpeton Oyate (SWO) tribe while working closely with community partners. Informal background interviews with key stakeholders provided a foundation on traditional crime management by the community. These interviews informed the creation of an SWO-specific adaptation of the Sellin-Wolfgang crime seriousness index following an online survey conducted in 2022 with SWO community members (n=44 completed surveys).

Aggregated survey data have been released as a zipped package as it was received by ICPSR. Please refer to the study documentation for details on the index items and instructions on how to obtain the raw research data. The Final Report released by NIJ contains the full SRO crime seriousness index as Appendix D.

Teen dating violence (TDV) is a prevalent criminal justice problem. The field urgently needs more effective interventions that are relevant to the lives of diverse adolescents; developing these interventions requires understanding of how violent episodes unfold within the greater romantic context, which generally includes not only violence but also positive feelings and behaviors. This study recruited 144 urban, primarily African American adolescent females from disadvantaged communities between 16 and 19 years of age who reported being in a romantic relationship with TDV in the past month.

The objectives of this study include examining the inter-play between emotional connectedness, pro-relationship behaviors, jealousy and TDV victimization and perpetration. Specifically, researchers will (1A) determine the same day and previous day associations between adolescent females' perceptions of emotional connectedness (love, communication, dyadic trust, intimate self-disclosure, commitment and enmeshment), jealousy and TDV victimization and perpetration, (1B) compare the frequency and patterns of emotional connectedness and jealousy across relationships that initiate, continue and/or escalate TDV victimization and perpetration; (2A) determine the same day and previous day associations between adolescent females' reports of pro-relationship behaviors and TDV victimization and perpetration, (2B) compare the frequency and patterns of pro-relationship behaviors across relationships that initiate, continue and/or escalate TDV victimization and perpetration; and (3) determine cycles of rupture (TDV incidents) and repair within adolescent relationships over time.

Researchers leveraged the infrastructure from the prior NIJ grant to recruit participants from community venues in Baltimore that have been identified as locations where adolescent females congregate, as well as recruited in the Johns Hopkins Pediatric Emergency Department and online through social media posts. Eligible females with informed consent completed the baseline survey which includes socio-demographic questions about the participant and her partner. From baseline, participants completed four months of diaries by responding to daily web-based questions on their Smart Phone about TDV victimization and perpetration, emotional connectedness and pro-relationship behaviors.

In relationships characterized by control, abuse, or violence, many appraisal distortions occur including denial and minimization. However, the nature of the distortion varies depending on the individual's role in the relationship (i.e., abuser or victim). Reducing these distortions is an important component in treatment success and involves accepting responsibility for actions and attributions. Relying on semi-structured interviews with 29 individuals who had been in abusive relationships, this study uses constructivist grounded theory methods to explore the following questions:

1. What are the types of distortions that are used by individuals who have been in violent or abusive relationships?
2. What are the gender and power differences in the appraisal distortions used?
3. What are the functions and interactions of the distortions in the relationship dynamics?

The Global Entrepreneurship Monitor [GEM] research program was developed to provide comparisons among countries related to participation of adults in the firm creation process. The initial data was assembled as a pretest of five countries in 1998 and by 2012 over 100 countries had been involved in the program. The initial design for the GEM initiative was based on the first US Panel Study of Entrepreneurial Dynamics, and by 2012 data from 1,827,513 individuals had been gathered in 563 national samples and 6 specialized regional samples.

This dataset is a harmonized file capturing results from all of the surveys. The procedure has been to harmonize the basic items across all surveys in all years, followed by implementing a standardized transform to identify those active as nascent entrepreneurs in the start-up process, as owner-managers of new firms, or as owner-managers of established firms. Those identified as nascent entrepreneurs or new business owners are the basis for the Total Entrepreneurial Activity [TEA] or Total Early-Stage index. This harmonized, consolidated assessment not only facilitates comparisons across countries, but provides a basis for temporal comparisons for individual countries.

Respondents were queried on the following main topics: general entrepreneurship, start-up activities, ownership and management of the firm, and business angels (angel investors). Respondents were initially screened by way of a series of general questions pertaining to starting a business, such as whether they were currently trying to start a new business, whether they knew anyone who had started a new business, whether they thought it was a good time to start a new business, as well as their perceptions of the income potential and the prestige associated with starting a new business. Demographic variables include respondent age, sex, and employment status.

The 1991 National Race and Politics Survey was a nationwide random-digit telephone survey carried out by the Survey Research Center of the University of California, Berkeley. A mailback survey of willing respondents to the telephone survey was also carried out. Data from the mailback survey are also included in the data file.

The telephone and mailback surveys included many questions related to racial attitudes and political orientation. There were also many questions on values, personality measures, and goals. A multi-disciplinary research team planned the survey and developed the questionnaire. The telephone interview was a computer-assisted survey that incorporated many randomized experiments, including vignettes and unobtrusive measures.

This data file describes three different experiments that were designed to examine how differences in the way forensic scientific evidence is communicated affects jurors.

In each experiment, participants consisted of jury-eligible community members in Maricopa County, Arizona. Groups of participants attended a research session in which they were shown a 35-40-minute videotapes of one of two mock criminal trials (one, a rape case, centers around bitemark evidence, and the other, an attempted murder, centers around fingerprint evidence). Within each trial the content of a forensic scientist's testimony was manipulated. These manipulations involved: 1) whether the technique used by the forensic scientist was "high tech" or "low tech," 2) the amount of experience possessed by the forensic scientist, 3) whether the technique used by the forensic scientist had been scientifically validated, 4) whether the forensic scientist conceded that an error was possible, and 5) whether any exculpatory evidence was present at the crime scene.

Immediately following the trial, each individual participants completed a questionnaire in which they gave their individual impressions of the strength of the case. Following that, the group of participant would deliberate and attempt to reach a unanimous verdict. Finally, each individual participant completed an additional questionnaire that again measured perceptions of the case along with individual difference measures and demographics.

The contained collection was designed to assess potential perceptions of two hypothetical health science research collaborations. The studies were also designed to test the utility of using procedural justice concepts to assess perceptions of research legitimacy as a theoretical way to determine public opinions on conflicts of interest.

The researchers performed three experimental studies to examine how different combinations of partners in a research collaboration influence subjects' perceived procedural fairness and legitimacy based on collaborative partnerships.

Datafiles:

Experience 1: 1000 cases, 92 variables

Experience 2: 1058 cases, 88 variables

Experience 3: 2107 cases, 76 variables

For more information about this study, please visit the study publication here.

This collection represents collated data from the British Social Attitudes Surveys (BSAS) between 1982 and 2012, and are part of an Economic and Social Research Council (ESRC) funded project.

The dataset contains variables relating to social and political attitudes and beliefs/perceptions of various social issues, such as the death penalty, homosexuals and adoption, government spending, welfare, and censorship; almost all of the questions were asked repeatedly throughout the British Social Attitudes Surveys.

Demographic variables in the data include household income, employment status, education, region, social class, household composition, marital status, age, sex, and ethnicity. Variables about government benefits respondents received are also included.

The Homeland Security in Small Law Enforcement Jurisdictions study drew upon data collected from 350 small (1-25 full time sworn officers) law enforcement agencies nationwide to address four gaps in the homeland security research literature and clarify/expand upon an empirically-derived model of homeland security preparedness and organizational efficacy.

• Whether physical and relational proximity to large agency peers facilitates the development of homeland security preparedness and improves perceptions of organizational efficacy (the capacity of an organization to respond) in small agencies and, conversely, whether the geographic isolation of small, rural agencies inhibits homeland security efforts.
• Whether efficacy of efforts to enhance homeland security is not just a function of perceived/actual risk or funding, but also other "institutional pressures", such as books and journal publications, as well as conferences, training, and other professional networks and channels.
• Assessments of preparedness outcomes through "organizational efficacy", the perception about the organization's ability to accomplish its goals.
• The lack of theoretical context, such as contingency and institutional theory frameworks, used to examine data on preparedness and organizational efficacy.

The Criminal Justice Drug Abuse Treatment Studies 2 (CJ-DATS 2) was launched in 2008 with a focus on conducting implementation research in criminal justice settings. NIDA's ultimate goal for CJ-DATS 2 was to identify implementation strategies that maximize the likelihood of sustained delivery of evidence-based practices to improve offender drug abuse and HIV outcomes, and to decrease their risk of incarceration.

CJ-DATS 2 HIV Services Treatment Implementation in Corrections focused on implementing interventions to address the HIV continuum of care in correctional settings. There are 5 datasets associated with this study.

-Dataset 1 (DS1) contains data aggregated at the correction facility level that examines delivery of HIV services in the experimental and control study groups (215 cases).

-Dataset 2 (DS2) and Dataset 3 (DS3) detail survey responses from correctional staff about how the HIV services were changed and/or implemented at their facilities (DS2 has 68 cases and DS3 has 85 cases).

-Dataset 4 (DS4) contains survey responses from inmates about their perceptions of the HIV services provided at facilities in which they are incarcerated (2,301 cases).

-Dataset 5 (DS5) contains data merged together by the principal investigator from several surveys given to treatment staff, treatment directors, correctional officers and correctional directors. This dataset includes demographic information, staff perceptions of their work environment, perceptions of HIV infected individuals, evaluations of HIV workshops and perceptions of the delivery of HIV services at their facility (385 cases).

These 5 datasets contain a total of 889 variables.

In the aftermath of the attacks on September 11, 2001, and subsequent terrorist attacks elsewhere around the world, a key counterterrorism concern was the possible radicalization of Muslims living in the United States. The purpose of the study was to examine and identify characteristics and practices of four American Muslim communities that have experienced varying levels of radicalization. The communities were selected because they were home to Muslim-Americans that had experienced isolated instances of radicalization. They were located in four distinct regions of the United States, and they each had distinctive histories and patterns of ethnic diversity.

This objective was mainly pursued through interviews of over 120 Muslims located within four different Muslim-American communities across the country (Buffalo, New York; Houston, Texas; Seattle, Washington; and Raleigh-Durham, North Carolina), a comprehensive review of studies an literature on Muslim-American communities, a review of websites and publications of Muslim-American organizations and a compilation of data on prosecutions of Muslim-Americans on violent terrorism-related offenses.

The Eurobarometer series is a unique cross-national and cross-temporal survey program conducted on behalf of the European Commission. These surveys regularly monitor public opinion in the European Union (EU) member countries and consist of standard modules and special topic modules. The standard modules address attitudes towards European unification, institutions and policies, measurements for general socio-political orientations, as well as respondent and household demographics. The special topic modules address such topics as agriculture, education, natural environment and resources, public health, public safety and crime, and science and technology.

This round of Eurobarometer surveys covers the standard modules and covers the following special topics: (1) the European Parliament, (2) Europe 2020, (3) the financial and economic crisis, and (4) media use for political information. Questions pertain to perceptions of the European Parliament and its policies, economic governance in the EU, the EU growth strategy, and EU citizenship. Other questions address political involvement and media use habits concerning political matters and information.

Demographic and other background information collected includes age, gender, nationality, marital status and parental relations, current and previous occupation, age when stopped full-time education, household composition, ownership of a fixed or mobile telephone and other goods, difficulties in paying bills, level in society, and Internet use. In addition, country-specific data includes type and size of locality, region of residence, and language of interview (select countries).

The National Long-Term Care Survey (NLTCS) has completed six waves, nominally at five-year intervals, 1982, 1984, 1989, 1994, 1999, and 2004. The NLTCS is a nationally-representative sample both of the community and of institutionalized populations and is longitudinal in that sample persons join the survey once they reach 65 years of age and stay in the survey until they either die or are lost to follow-up. At each wave, a screener questionnaire is administered to the sample which divides the sample into three parts: the non-disabled (frequently called screen-outs), the disabled but living in the community, and the disabled living in an institution. About 5,000 people die between waves and are replaced by a sample of about that size of people who have become age 65 since the prior wave. Because of budget considerations it usually has not been possible to continue the entire non-disabled sample into the next wave. Instead a sample of the non-disabled is drawn to keep the total sample size for a wave at about 20,000. One of the interesting and useful features of the NLTCS is that data are collected on help that the sample person receives from informal caregivers.

The NLTCS is a very data-rich resource with many components, including disability measures, medical conditions, attained education levels, and income. Numerous papers have used it as a source of data addressing a wide variety of topics related to aging and disability.

Ancillary surveys have been added to measure other characteristics of the 65 and older population, to include a Caregiver Survey to acquire data on informal caregivers themselves (done in 1989, 1999, and 2004) and Next-of-Kin (NOK) surveys administered to sample persons who had died between 1982 and 1984 and again between 1994 and 1999. The sample has been frequently supplemented to compensate for low representation in some survey components, in particular the 75 years and older and 95 years and older components. In 1999 physical specimens were drawn from a sample of persons who responded to the survey. These physical specimens (blood where possible, alternatively a buccal wash) are subject to a genetic analysis and, in the case of blood, to a panel of proteins believed to be particularly important to health.

NLTCS Survey Data

Survey data are available in ASCII and SAS format.

The Analytic Data File, a file of derived variables for all waves of the survey incorporates correction factors and consistency checking. The Analytic Data File covers all waves of the survey and is available in both ASCII and SAS formats. Final versions of data for all waves, up to and including 1999 and a beta version for 2004, have been released and are supported by documentation.

The purpose of the Early Years of Marriage (EYM) Project was to determine ways in which the early development of marriage for Black couples and White couples affect the mental and physical health of spouses, marital stability, long-term marital outcomes, patterns of family life and, for those who divorce, individual adjustment to family disruption. The EYM Project began in 1986 with 373 newlywed couples--174 White couples and 199 Black couples. The marriages were all intra-racial and it was the first marriage for both spouses.

Year 1 interviews, which queried the couples on various aspects of married life, began after four to nine months into the marriage. Very few respondents who originally participated in Year 1 of the study refused to participate in subsequent phases of the study. In 1986 (Year 1) and 1988 (Year 3) spouses were interviewed in their homes separately and together, with the interviews conducted by interviewers of the same race. In 1987 (Year 2) and 1989 (Year 4) shorter individual telephone interviews were conducted.

In all four years, respondents were queried on a wide variety of topics such as feelings and perceptions of their own family, spouse, in-laws, and their spouse's friends, family planning, how many children they should have, how the children should be reared, childcare, and household roles and responsibilities. A series of questions was asked about reasons for getting married, how satisfying married life was, what, if any, were the special pleasures and good feelings that came from being married, how often arguments and disagreements occurred, main reasons for arguments, and how they were eventually resolved. A series of questions were also asked regarding the mental and physical health of the spouse, job satisfaction, job security, and how the job affected the family. In Year 2 and Year 4 interviews (Parts 2-4), a series of questions regarding separation and divorce were also asked.

Demographic variables include race, gender, age, level of education, occupation, income, and religious preference.