Psychology Research Guide

NIH-supported data repositories that make data accessible for reuse.

The Odum Institute has a large archive of public opinion data, including more than 1,000 Harris Polls from as early as 1958, the National Network of State Polls collection (775 studies from more than 25 states), the Carolina Poll (1977–2005), Monmouth University Polling Institute polls (2011+), the Southern Focus Poll (1992–2001), and some USA Today polls (1984–1993).

Oldest continuous series of survey data investigating electoral behavior and attitudes in the United States (since 1948). ANES interviews are conducted before and after presidential elections and after national congressional elections. Post-election interviews include questions on actual voting behavior. Click on "Data Center" at the top of the page to download the datasets for the various waves. Click on "Utilities" to browse/search lists of questions and variables. For quick online analysis, use Berkeley's SDA service.

A 50,000+ person national stratified sample survey allowing analysis at the congressional district level. Half of the questionnaire consists of Common Content asked of all respondents (much of which remains the same each wave), and half of the questionnaire consists of Team Content designed by each participating team and asked of a subset of 1,000 people (generally not accessible). Topics include registration and voting, political knowledge, ideology, and policy preferences related to key issues on which Congress has taken roll call votes in the preceding two legislative sessions. Has both pre-election and post-election waves. Includes validated registration and turnout variables.

Questions about vote choice for president, Congress, gubernatorial races, important issues affecting the vote decision, presidential approval, and a number of current national, state, and local issues. Includes basic demographic variables, such as gender, race, education, income, and age. In most years, exit polls are only conducted in a selection of the states. Data is no longer restricted.

For 2018, the collection includes AP VoteCast, which uses a random sample of registered voters to calibrate a massive poll (116,792 voters and 22,137 nonvoters) conducted using opt-in online panels rather than a traditional exit poll. (Also available via ICPSR.)

For aggregate statistics, see CNN's exit poll pages:

• 2020
• 2018
• 2016
• 2014
• 2012 (access polls through each race or state)
• 2010 (from NYT)
• 2008, 2006
• 2004 (access polls through each race or state)
• 2002 unavailable; the company conducting the polling didn't supply the data to news agencies on election night due to a problem
• 2000 (archived site, many pages missing)

The Pew Research Center is a "nonpartisan fact tank" conducts public opinion polling, demographic research, media content analysis, and other empirical social science research around several broad themes: U.S. politics and policy, use and influence of the media, the role of the internet and technology, Hispanics in the U.S., the role of religion in public life in the U.S. and beyond, social & demographic trends in the U.S., and global attitudes. All data and reports can be browsed by topic, searched by question, and are freely downloadable. 1997-present.

The GSS is a long running survey of social, cultural and political indicators. Probably the single best source of data on societal trends. Includes questions on presidential vote choice, party ID, interest in politics, and more. You can download the full dataset or extracts, and you can also analyze it online using Berkeley's SDA service.

AP-NORC's polls are typically archived at Roper after about a year delay. More recent poll datasets are available on their website with about a 6 month embargo.

The Views of the Electorate Research (VOTER) survey, conducted in partnership with YouGov, is a panel survey of about 6000 adults in 4 waves, 2016-2019 (drawn from respondents to a similar survey in 2011 and 2012). Includes measures of political attitudes, values, and affinities in 2011/12 as well as self-reports of turnout and vote choice in November 2012 and 2016. Also includes the newer Nationscape weekly survey of 6000 people per week (started in late 2019). Data in .csv, Stata, and SPSS formats.

A six-wave panel survey (sample size 20,000) of the American electorate (registered voters only) preceding and immediately after the 2008 Presidential elections. Participants from battle-ground states are overrepresented, so that each strata (battle-ground and non-battleground) makes 50% of the sample. More than 1700 variables measure attentiveness, issues, candidate assessment, vote intentions, presidential nominee preferences, media consumption, political information, religion, and demographics. Data in .csv, Stata, and SPSS. (Note: a 2012 survey was conducted but has not been released yet.)

Large telephone and online survey of 30–60,000 adults that asks about attitudes and knowledge of candidates and political figures, current policy issues, media use, campaign discourse, political participation, and voting behavior, with an emphasis on issues of political communication. Data generally in SPSS or Stata formats. Includes a large sample of panel data.

Nationally representative, probability-based panel of over 6000 U.S. adults 18 and older. Panel members are provided with the technology to respond to surveys, so the panel is representative of the whole adult U.S. population, not just those with internet access. ALP has fielded over 450 surveys on multiple topics including more than 50 waves about the effects of the 2008 financial crisis, multiple waves on the Affordable Care Act, and multiple election surveys: a biweekly pre- and post-election survey of the 2008 presidential election, a 5 month Continuous 2012 Presidential Election Poll, a 6 wave 2014 midterm election survey, and a 6 wave 2016 Presidential Election Panel Survey (under embargo until Dec. 2017). Data (in Stata format) is free after registration. 2006+.

Representative internet panel of about 3000 respondents were asked questions on the 2016 election about every 5 days from July to November. Data is freely available.

TAPS is a monthly online survey of a national probability sample from a panel of about 2,000 adults in the United States with a high response and retention rate (approximately 75-80% of the TAPS Panel complete each TAPS wave during the year). Recurring questions include a battery of approval measures, economic evaluations, ideology and party identification, candidate evaluations, and major issues, such as immigration and the Supreme Court. Data may include questions fielded by additional researchers. 2011+. Data in Stata, SPSS, and R formats.

TESS provides researchers with shared access to a nationally representative online sample to allow them to conduct randomized social science experiments. Many of these studies utilize surveys with experimental treatments. Each study contains a project proposal and experimental results data.

Designed to enable a crossnational comparison of values and norms on a wide variety of topics and to monitor changes in values and attitudes across the globe. WVS has had six waves (1981-2014). You can download the full datasets for each wave or a longitudinal file covering all waves (click Data & Documentation on the left). You can also analyze them online.

The ISSP is a cross-national survey program conducting annual surveys in a broad group of countries. The survey asks questions on a variety of topics. You can download full datasets or analyze online through GESIS (click on Archive on the left); some older modules can also be analyzed online through ASEP/JDS. Also has links to its 50 member states, which often provide additional national public opinion.

Collaborative survey project covering six regions: Africa (Afrobarometer), East and Southeast Asia (Asian Barometer), South Asia (South Asia Barometer), Central and South America (Latinobarómetro), the Middle East (Arab Barometer), and countries of former Soviet Union (Eurasia Barometer). Measures attitudes about politics, power, reform, democracy, etc. Two pooled waves (2005-2011 and 2011-2013) based on a common module of questions contained in the regional barometer surveys. Download the dataset or analyze online.

The Pew Research Center’s Global Attitudes Project conducts public opinion surveys around the world on a broad array of subjects ranging from people’s assessments of their own lives to their views about the current state of the world and important issues of the day. Over 330,000 interviews in 60 countries have been conducted since 2001 as part of the project’s work.

Compilation of public opinion surveys conducted in the United States and more than 80 other countries. Searches at the question level; you can also browse by topic or country. Only provides summary response totals.

The Voice of the People Survey Series is WIN/Gallup International Association's End of Year survey and is a global study that collects the public's view on the challenges that the world faces today. Conducted in approximately 50 countries, with a minimal sample size of 500 per country, topics include the economic situation in their country, their personal happiness, the most important problem facing the world today, the role of religion in their country, which country they would like to live in, female politicians, which country is the greatest threat to world peace, and corruption within their country. Data in multiple formats.

WorldPublicOpinion.org is an international collaborative project managed by the Program on International Policy Attitudes at the Univ of Maryland. Provides polling data and analysis from numerous sources. Full datasets can be downloaded from http://drum.lib.umd.edu/handle/1903/10117.

A longstanding survey of public opinion in the EU and candidate countries. You can create tables by searching through questions and comparing countries responses over time. They also publish analyses of each wave of the survey. Use the Eurobarometer Question Search to find if and when a topic was covered on the Eurobarometer. Also includes a a guide to topical trends over time. For quick download of entire waves of the survey, use the series in ICPSR. 1970+

Biennial multi-country survey covering over 30 nations. The 1st round was fielded in 2002/2003, the 8th was completed in 2016. It monitors change and continuity in a wide range of social, political, moral, health, and demographic variables. You can download full datasets or analyze them online, after a free registration.

The European Values Study is a large-scale, cross-national, and longitudinal survey research program on how Europeans think about life, family, work, religion, politics, and society. Surveys were done in 1981, 1990, 1999, and 2008. You can download full datasets or analyze online after a free registration. For background on the EVS and associated publications, see http://www.europeanvaluesstudy.eu/

Six wave survey conducted between 2012 and 2014 in the Southern and Eastern EU Neighbourhood countries, from Morocco to Lebanon (Syria was not surveyed), and from Azerbaijan to Belarus, plus Russia. 1000 face-to-face interviews covering perception of living conditions, political issues, political efficacy across the region, attitudes toward the EU, and other topics. Data in SPSS and Stata; documentation in English.

Annual survey in the Russian Federation, 1992–2012. Each survey has a nationwide sample of 1600 to 2000 respondents. Topics include political, economic, and social affairs. For more information, see the CSPP pages. Spreadsheets of monthly trend files from the surveys can be accessed through the Russia Votes site and online analysis is available for each wave plus a multi-wave trend file.

Includes nearly all the countries of East Central, East, and Southeast Europe, 1991–2005. Topics include evaluations of and attitudes to the economic, political, and social transformations of the region after the end of communism. For more information, see the CSPP pages.

Surveys of Estonia, Latvia, and Lithuania, 1993–2004 with a focus on the different nationalities in the Baltics. Asks representative samples of each nationality similar sets of questions about their multiple identities, language use, political attitudes, economic behavior, and social conditions. For more information, see the CSPP pages.

United States and European public opinion on a host of transatlantic issues, including foreign policy challenges, support for NATO, the economy, and the rise of other world powers with an aim to foster debate on the strategic policy goals, objectives, and values of the United States and Europe as members of the transatlantic community. Full datasets are available through the Roper Center.

Measures the social, political and economic atmosphere in Africa. Beginning with 12 countries in Round 1 (1999–2001), it now (Round 7, 2017–18) conducts surveys in more than 30 countries (and 115 languages) comprising 76% of Africa's population. See the coverage by country chart. Data in SPSS for individual countries as well as a merged file; documentation in English. Online analysis is available.

Survey designed to assess citizen attitudes in the Arab world on such topics as: support for democratic institutions, political interest and participation, attitudes toward terrorism and political violence, conceptions and interpretations of Islam, the relationship between religion and politics, and attitudes toward Middle East international relations. 5 waves, 2006-2019. Downloads in multiple formats or can be analyzed online. Also available through ICPSR.

Covers 29 countries in East, Southeast, South, and Central Asia (15 in two or more waves), 2003–2007. Topics include governance, democratic consolidation/regression, social values, happiness, quality of life, religiosity, mass media, identity, and globalization. Data is available, but must be requested first.

Annual household survey about social, economic, and political issues and attitudes in Georgia, Armenia, and Azerbaijan, 2008–2015. Also includes additional surveys of public attitudes to policies and institutions in Georgia. Data in SPSS and Stata; documentation in English. Can also be analyzed online.

Covers 8–14 countries in East Asia in multiple waves (2001–03; 2005–08; 2010–12; 2014–16); and 2 waves for 5 South Asian countries. Topics include economic evaluations; trust in institutions, political participation, media use, political evaluations; socio-political values, and views on international relations. Data in SPSS; free, but requires individual application. Online analysis available for waves 1 & (part of) 2.

Latinobarómetro is an annual public opinion survey that involves some 19,000 interviews in 18 Latin American countries (also includes Spain for most years) from 1995–2015. Datasets in multiple formats; results can also be analyzed online.

Public opinion surveys conducted by the survey research community in Latin America. To date, the collection holds nearly 1,200 studies from 16 countries, with the largest contributions coming from Argentina, Chile, Mexico, Peru and Venezuela, primarily 1990s forward.

Our Data and Statistical Services catalog has for additional public opinion polls that can be filtered by country or region..