Profiles of Individual Radicalization in the United States (PIRUS), 1948-2014 (ICPSR 36309)
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 Empirical Assessment of Domestic Radicalization (EADR) project seeks to provide practitioners, researchers, and the public with an empirical foundation for understanding the radicalization processes of United States-based extremists. Project researchers utilized a mixed-method, nested approach to explore a number of key research questions related to radicalization, including:
- what are the demographic, background, and radicalization differences between and within the different ideological milieus?
- are there important contextual, personal, ideological, or experiential differences between radicals who commit violent acts and those who do not?
- is it possible to identify sufficient pathways to violent extremism?
- are the causal mechanisms highlighted by extant theories of radicalization supported by empirical evidence?
The collection includes 5 SPSS datasets and 2 SPSS syntax files:
- PIRUS_full_dataset_ICPSR_archive.sav (n=1,473; 113 variables)
- PIRUS_expected_maximization_version.sav (n=16,203; 27 variables)
- PIRUS_fixed_value_imputation_version.sav (n=1,473; 27 variables)
- PIRUS_regression_based_imputation_version.sav (n=16,203; 28 variables)
- PIRUS_subgroup_mean_substitution_version.sav (n=1,473; 27 variables)
- quantitative_analysis_syntax.sps
- variable_prep_syntax.sps
The Role of Social Networks in the Evolution of Al Qaeda-inspired Violent Extremism in the United States, 1990-2014 (ICPSR 36235)
This study compiled data on American jihadists and other Islamic extremists recruited since the early 1990s. Specifically, "homegrown" terrorist, referring to Americans and other Westerners who are inspired to commit acts of terrorism or support those committing these acts in their home country on behalf of foreign terrorist organizations, are the main focus. The purpose of this research is to address the central question: How do foreign terrorist organizations mobilize Americans to carry out attacks on their behalf?
Variables collected include extremist group affiliation, criminal background, foreign fighter history if applicable, coconspirators and their relationship, and the location and nature of terrorist plots. Demographic variables include sex, ethnicity, immigration status, education, and profession.
Sequencing Terrorists' Precursor Behaviors: A Crime Specific Analysis, United States, 1980-2012 (ICPSR 36676)
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 identified the temporal dimensions of terrorists' precursor conduct to determine if these behaviors occurred in a logically sequenced pattern, with a particular focus on the identification of sequenced patterns that varied by group type, group size, and incident type. The study specifically focused on how these pre-incident activities were associated with the successful completion or prevention of terrorist incidents and how they differed between categories of terrorism. Data utilized for this study came from the American Terrorism Study (ATS), a database that includes "officially designated" federal terrorism cases from 1980-October 1, 2016, collected for the National Institute of Justice.
The project focused on three major issues related to terrorists' precursor behaviors:
- A subgroup analysis of temporal, crime-specific patterns by group type,
- The nature of the planning process, and
- Factors associated with the outcomes of terrorist incidents (success or failure).
The collection contains 2 SPSS data files, Final_Hypothesis_Data_Set.sav (n=550; 16 variables) and Final_Sequencing_Antecedent_Temporal.sav (n=2354; 16 variables), and 1 plain text file, Recode_Syntax.txt.
Homeland Security in Small Law Enforcement Jurisdictions: Preparedness, Efficacy, and Proximity to Big-City Peers, 2011 (ICPSR 33941)
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.
CBS News Poll, March 2014 (ICPSR 36196)
CBS News Poll, June 2013 (ICPSR 36057)
Survey of Consumer Attitudes and Behavior, September 2001 (ICPSR 35287)
Assessment of Defense and Prosecutorial Strategies in Terrorism Trials in the United States, 1980-2004 (ICPSR 26241)
CBS News/New York Times September 11th Families Poll, August #3, 2011 (ICPSR 34469)
CBS News/New York Times/60 Minutes/Vanity Fair National Poll, August #4, 2011 (ICPSR 34470)
CBS News/New York Times New York City Poll, August #2, 2011 (ICPSR 34468)
New York Times New York City Poll, January 2003 (ICPSR 3741)
CBS News National Survey, March #2, 2011 (ICPSR 33488)
CBS News Survey, January #1, 2011 (ICPSR 33481)
CBS News/60 Minutes/Vanity Fair Monthly Poll #3, November 2010 (ICPSR 33207)
CBS News/60 Minutes/Vanity Fair Monthly Poll #2, November 2010 (ICPSR 33206)
CBS News/Vanity Fair Monthly Poll, March 2010 (ICPSR 31568)
CBS News Monthly Poll, December 2009 (ICPSR 30408)
CBS News Monthly Poll #1, September 2007 (ICPSR 22584)
CBS News/Vanity Fair Monthly Poll #1, January 2010 (ICPSR 31162)
CBS News Monthly Poll #2, September 2007 (ICPSR 22585)
Incidents of Post-9/11 U.S. National Security Policies' Impact on Scientific Research and Higher Education in Diverse Geographic Locations, March 2002 to June 2005. (ICPSR 30206)
Through this study, the American Association for the Advancement of Science (AAAS) sought to collect and disseminate information about the impacts of post-9/11 security policies on scientific research and higher education. The study resulted in the development of a searchable database that includes 92 separate incidents in which scientists and engineers, from across the United States and internationally, were affected by the implementation of those policies.
Data for this study were collected via the following methods: public literature and professional journal searches, the American Association for the Advancement of Science Web site, and announcements of the project.