The 1915 Iowa State Census Project (ICPSR 28501)
ABC News Elian Gonzalez Poll, April 2000 (ICPSR 3055)
ABC News/Washington Post Monthly Poll, August 2005 (ICPSR 4518)
ABC News/Washington Post Monthly Poll, June 2010 (ICPSR 30205)
ABC News/Washington Post Monthly Poll, September 2010 (ICPSR 32545)
ABC News/Washington Post Poll #1, December 2007 (ICPSR 24593)
ABC News/Washington Post Poll, March 1996 (ICPSR 6816)
ABC News/Washington Post Poll, October 2007 (ICPSR 24592)
ABC News/Washington Post Pre-State of the Union Address Poll, January 2006 (ICPSR 4656)
ABC News/Washington Post Pre-Super Tuesday Poll, January 2008 (ICPSR 24604)
Advancing the Understanding of Immigration, Crime, and Crime Reporting at the Local Level with a Synthetic Population, United States, 2019 (ICPSR 39318)
This study investigated the complex relationship between unauthorized immigration and crime at the local level. Through a mix of data fusion, synthetic population modeling, and detailed crime reporting from selected jurisdictions, the study sought to produce nuanced insights to challenge prevailing assumptions about immigration and crime, ultimately aiding in informed policy-making and resource allocation.
This study employed crime and crime reporting data from ten jurisdictions across the United States paired with synthetic data which estimated the unauthorized immigrant population. This research aimed to provide an in-depth analysis at the census tract level. Analyses focused on unauthorized immigration and its correlation with drug, property, and violent crime rates, while accounting for crime reporting in traditional and emerging immigrant destinations along with sites with low foreign populations.
Afrobarometer Round 5: The Quality of Democracy and Governance in Lesotho, 2012 (ICPSR 35551)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2003 (ICPSR 4117)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2004 (ICPSR 4370)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2005 (ICPSR 4587)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2006 (ICPSR 22101)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2007 (ICPSR 24503)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2008 (ICPSR 29263)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2009 (ICPSR 33802)
American Community Survey (ACS): Three-Year Public Use Microdata Sample (PUMS), 2005-2007 (ICPSR 25042)
American National Election Study: 2016 Pilot Study (ICPSR 36390)
These data are being released as a preliminary version to facilitate early access to the study for research purposes. This collection has not been fully processed by ICPSR at this time, and data are released in the format provided by the principal investigators. As the study is processed and given enhanced features by ICPSR in the future, users will be able to download the updated versions of the study. Please report any data errors or problems to user support, and we will work with you to resolve any data-related issues.
The American National Election Study (ANES): 2016 Pilot Study sought to test new instrumentation under consideration for potential inclusion in the ANES 2016 Time Series Study, as well as future ANES studies. Much of the content is based on proposals from the ANES user community submitted through the Online Commons page, found on the ANES home page. The survey included questions about preferences in the presidential primary, stereotyping, the economy, discrimination, race and racial consciousness, police use of force, and numerous policy issues, such as immigration law, health insurance, and federal spending. It was conducted on the Internet using the YouGov panel, an international market research firm that administers polls that collect information about politics, public affairs, products, brands, as well as other topics of general interest.
ANES 2016 Time Series Study (ICPSR 36824)
This study is part of the American National Election Study (ANES), a time-series collection of national surveys fielded continuously since 1948. The American National Election Studies are designed to present data on Americans' social backgrounds, enduring political predispositions, social and political values, perceptions and evaluations of groups and candidates, opinions on questions of public policy, and participation in political life. As with all Time Series studies conducted during years of presidential elections, respondents were interviewed during the two months preceding the November election (Pre-election interview), and then re-interviewed during the two months following the election (Post-election interview). Like its predecessors, the 2016 ANES was divided between questions necessary for tracking long-term trends and questions necessary to understand the particular political moment of 2016. The study maintains and extends the ANES time-series 'core' by collecting data on Americans' basic political beliefs, allegiances, and behaviors, which are so critical to a general understanding of politics that they are monitored at every election, no matter the nature of the specific campaign or the broader setting. This 2016 ANES study features a dual-mode design with both traditional face-to-face interviewing (n=1,181) and surveys conducted on the Internet (n=3,090), and a total sample size of 4,271. In addition to content on electoral participation, voting behavior, and public opinion, the 2016 ANES Time Series Study contains questions about areas such as media exposure, cognitive style, and values and predispositions. Several items first measured on the 2012 ANES study were again asked, including "Big Five" personality traits using the Ten Item Personality Inventory (TIPI), and skin tone observations made by interviewers in the face-to-face study. For the first time, ANES has collected supplemental data directly from respondents' Facebook accounts. The post-election interview also included Module 5 from the Comparative Study of Electorial Systems (CSES), exploring themes in populism, perceptions on elites, corruption, and attitudes towards representative democracy. Face-to-face interviews were conducted by trained interviewers using computer assisted personal interviewing (CAPI) software on laptop computers. During a portion of the face-to-face interview, the respondent answered certain sensitive questions on the laptop computer directly, without the interviewer's participation (known as computer assisted self-interviewing (CASI)). Internet questionnaires could be completed anywhere the respondent had access to the Internet, on a computer or on a mobile device. Respondents were only eligible to compete the survey in the mode for which they were sampled. Demographic variables include respondent age, education level, political affiliation, race/ethnicity, marital status, and family composition.
ANES 2020 Time Series Study (ICPSR 38034)
This study is part of the American National Election Study (ANES), a time-series collection of national surveys fielded continuously since 1948. The American National Election Studies are designed to present data on Americans' social backgrounds, enduring political predispositions, social and political values, perceptions and evaluations of groups and candidates, opinions on questions of public policy, and participation in political life. As with all Time Series studies conducted during years of presidential elections, respondents were interviewed during the two months preceding the November election (Pre-election interview), and then re-interviewed during the two months following the election (Post-election interview). Like its predecessors, the 2020 ANES was divided between questions necessary for tracking long-term trends and questions necessary to understand the particular political moment of 2020. The study maintains and extends the ANES time-series 'core' by collecting data on Americans' basic political beliefs, allegiances, and behaviors, which are so critical to a general understanding of politics that they are monitored at every election, no matter the nature of the specific campaign or the broader setting. This 2020 ANES study features a fresh cross-sectional sample, with respondents randomly assigned to one of three sequential mode groups: web only, mixed web (i.e., web and phone), and mixed video (i.e., video, web, and phone). The new content for the 2020 pre-election survey includes coronavirus pandemic, election integrity, corruption, impeachment, immigration and democratic norms. The pre-election survey also includes protests and unrest over policing and racism. The new content for the 2020 post-election survey includes voting experiences, anti-elitism, faith in experts or science, climate change, gun control, opioids, rural-urban identity, international trade, transgender military service, social media usage, misinformation, perceptions of foreign countries and group empathy. Phone and video interviews were conducted by trained interviewers using computer-assisted personal interviewing (CAPI) software on computers. Unlike in earlier years, the 2020 ANES did not use computer-assisted self interviewing (CASI) during any part of the interviewer-administered modes (video and phone). Rather, in interviewer-administered modes, all questions were read out loud to respondents, and respondents also provided their answers orally. Demographic variables include respondent age, education level, political affiliation, race/ethnicity, marital status, and family composition.
Assessing the Consequences of Politicized Confirmation Processes, 2005-2006 (ICPSR 31841)
Assessing the Relationship Between Immigration Status, Crime, Gang Affiliation, and Victimization, Arizona, 2007-2023 (ICPSR 39107)
Over the last several years, the topic of immigration has gained increased attention from politicians, policymakers, and the media. This attention has centered on the prevalence of undocumented immigrants entering and residing within the United States, concern over increasing crime rates involving undocumented immigrants, and the appropriateness of the various policies aimed at controlling the influx of undocumented immigrants into the country. The recent wave of immigration from Latin America has led to a renewed public outcry and overall concerns regarding the relationship between immigration, crime and gang involvement, and the safety of the American public.
Thus, the goal of this project was to conduct a multi-methodological study to examine immigrants' involvement in crime, gang membership, and experiences with violent victimization. In addition, this project examined alcohol and drug use among immigrants. This project relied on data collected in Maricopa County, Arizona. Specifically, this project relied on
- analyses of previously collected quantitative self-report data from a sample of recently booked arrestees,
- analyses of quantitative self-report data collected from a community sample of immigrants (of different immigration statuses) and US-born citizens, and
- analysis of qualitative data collected from a community sample of immigrants (of different immigration statuses) and US-born citizens.
The results provide a more comprehensive understanding of the relationship between immigration status and crime, gang involvement, and victimization as well as an understanding of immigrants' alcohol and drug use, relative to US-born citizens.
Border Contraceptive Access Study, El Paso, Texas 2005-2008 (ICPSR 32561)
Oral contraceptive (OC) users living in El Paso, Texas were interviewed to assess motivations for patronizing a United States clinic or a Mexican pharmacy with over-the-counter (OTC) pills and to determine which women were likely to use the OTC option. The experiences of OC users who obtained their contraception from Mexican pharmacies were compared with those of women who obtained their pills from family planning clinics in El Paso, Texas, where eligible low-income women often pay nothing. 532 clinic users and 514 pharmacy users were surveyed about background characteristics, motivations for choosing their oral contraception source, and satisfaction with this source. For more information, please see the Border Contraceptive Access Study website.
British General Election Study: Ethnic Minority Survey, 1997 (ICPSR 2618)
Candidate Countries Eurobarometer 2003.3, June-July 2003 (ICPSR 4055)
Caribbean Migrations: Jamaica Returned Migrants Study, 2010-2012 (ICPSR 36178)
This study is the current arm of the Caribbean Migration Project, designed to generate a database of Jamaicans, returned residents and those with no international migration history, across the income classes and residential areas in Kingston and St. Andrew, Manchester and St. Ann. Jamaica was chosen as the inaugural country for investigation as a pilot for the processes involved in the data collection and fine-tuning the protocols to be extended to other Caribbean countries. The four parishes in Jamaica were purposively selected because of their proportion of returning residents in comparison with the country's other parishes. Respondents were thought to represent a sample of persons from a range of parishes in which there is a high proportion of returned residents (St. Andrew and Manchester) to others in which the majority of the population has no international migration history (St. Ann and Kingston). Demographic variables in this study include age, family size and structure, ethnicity, education, and travel and migration history.