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This page features links to some useful data collections for political science research. Because the contents of these collections change frequently, these links should direct users to the top-level of data collections, rather than specific data sets.

Statistical Data Collections Links (Alphabetical Order): add | print urls

1. Adjusted Interest Group Scores Subfield: American Politics. From Tim Groseclose edit
2. Afrobarometer Data Collection Subfield: Public Opinion Surveys. An African-led series of national public attitude surveys on democracy and governance in Africa edit
3. Agency Data Subfield: American Politics. An Archive of Administrative Agency Data from Tony Bertelli and Christian Grose edit
4. Aids Flows Subfield: International Relations. AidFlows visualizes how much development financing is provided and received around the world. Users can select individual financiers/donors (providing the funding) and beneficiaries (receiving the funding) to track the sources and uses of development edit
5. American Ideology Project Subfield: American Politics. Offers a measure of the political liberalism/conservatism of states, congressional districts, cities, state senate and assembly districts, and partisans within these areas edit
6. American Legislatures Project Subfield: American Politics. Aims to measure the ideology of individual state legislators and state legislatures as a whole over the past several decades, state and individual-level data available. edit
7. American National Election Studies Subfield: Public Opinion Surveys. ANES produces high quality data from its own surveys on voting, public opinion, and political participation; see Data Center for downloads edit
8. American Presidency Project Subfield: American Politics. Established in 1999 at the University of California, Santa Barbara, archives contain 103,280 documents related to the study of the Presidency. edit
9. Biographical Directory of Members of Congress Subfield: American Politics. edit
10. British Election Study Subfield: Comparative Politics. Long term studies of Britain's electoral behaviour. edit
11. Brookings Institution Vital Statistics on Congress Subfield: American Politics. Useful data on America’s first branch of government, including data on the composition of its membership, its formal procedure, informal norms, party structure, and staff edit
12. Census Data Center Subfield: Voting and Elections. Helpful site from Missouri for advanced analysis of Census data edit
13. Center for Systematic Peace Datasets Subfield: International Relations. Multiple significant datasets prepared by researchers associated with the Center for Systemic Peace and are generated and/or compiled using open source information. edit
14. Charles Stewart's Congressional Data Page Subfield: American Politics. Great resource on Congressional Committees edit
15. CIRI Human Rights Dataset Subfield: Comparative Politics. standards-based quantitative information on government respect for 15 internationally recognized human rights for 202 countries edit
16. Congress Roll Call Vote Indexes (101-112) Subfield: American Politics. Basic tables on votes in House and Senate edit
17. Congressional Bills Project Subfield: American Politics. information about more than 400,000 bills introduced in the U.S. Congress, currently 1947-2008, along with extensive information about each bill's progress and sponsor edit
18. Congressional District Data Subfield: Voting and Elections. The data set includes a wide range of economic, social and geographic information for every U.S. congressional district, from 1943-1998. edit
19. Congressional Voting Data Subfield: American Politics. This data set includes traditional aggregate voting scores as well as Cooper-Young structuring scores from the 40th through the 111th Congresses (1867-2009) edit
20. Cooperative Congressional Election Study Subfield: Voting and Elections. Dataverse offers the common content and the team content for all the teams participating in this study. edit
21. Correlates of State Policy Project Subfield: American Politics. Aims to compile, disseminate, and encourage the use of data relevant to U.S. state policy research, tracking policy differences across and change over time in the 50 states edit
22. Correlates of War Project Datasets Subfield: International Relations. COW seeks to facilitate the collection, dissemination, and use of accurate and reliable quantitative data in international relations. edit
23. Cosponsorship Network Data Subfield: American Politics. This page contains links to data on Cosponsorships in the U.S. Senate and U.S. House of Representatives for the 93rd to 108th Congresses. edit
24. Database on Ideology, Money in Politics, and Elections Subfield: American Politics. A general resource for the study of campaign finance and ideology in American politics by Adam Bonica. edit
25. Datorium from GESIS Subfield: Comparative Politics. a data repository service for the social science and economic science research community from GESIS – Leibniz-Institute for the Social Sciences edit
26. David Lublin's Data for Download Subfield: Voting and Elections. Includes data on 2000 elections, district data, candidate quality, southern politics edit
27. Development Economics Datasets Subfield: Comparative Politics. Frequently updated blog managed by Masayuki Kudamatsu edit
28. Digest of Educational Statistics Subfield: American Politics. A compilation of statistical information covering the broad field of American education from prekindergarten through graduate school. edit
29. Educational Attainment Dataset Subfield: Comparative Politics. Focus on 1950-2010 edit
30. Electoral Integrity Project Subfield: Voting and Elections. International election data, reports on electoral systems around the world edit
31. Enterprise Surveys Subfield: Public Opinion Surveys. firm-level survey of a representative sample of an economy’s private sector from the World Bank edit
32. Eurobarometer Surveys Subfield: Public Opinion Surveys. The Standard Eurobarometer was established in 1974. Each survey consists of approximately 1000 face-to-face interviews per country. Reports are published twice yearly. edit
33. European Social Survey Subfield: Public Opinion Surveys. The European Social Survey (ESS) is an academically driven cross-national survey that has been conducted across Europe since 2001. Every two years, face-to-face interviews are conducted with newly selected, cross-sectional samples. edit
34. Executive Order Data Subfield: American Politics. From the National Archives Federal Register edit
35. Federal Election Commission's Campaign Finance Reports and Data Subfield: Voting and Elections. Some of these files are very large and challenging to work with, but the FEC makes a lot of data available edit
36. Federal Judicial Center Biographical Database Subfield: Law Courts Justice. extremely helpful resource for research on federal judges edit
37. FedStats Web Site Guide to data from more than 100 agencies that provide data and trend information on such topics as economic and population trends, crime, education, health care, energy use and more edit
38. GESIS: Data Archive for the Social Sciences Subfield: Public Opinion Surveys. national and international comparative surveys from the fields of social and political science research edit
39. Google Ngram Track the prevalence of terms over time in books (can go back to 1800s) edit
40. GovTrack.us Subfield: American Politics. The site helps ordinary citizens find and track bills in the U.S. Congress and understand their representatives’ legislative record. edit
41. GROWup - Geographical Research On War, Unified Platform Subfield: International Relations. offers a visualization of settlement patterns of politically active ethnic groups around the world from 1946-2013 edit
42. Harvard Election Data Archive Subfield: Voting and Elections. This archive contains data on election results, voting behavior, and electoral politics, with particular focus on the United States. edit
43. High Courts Judicial Database Subfield: Law Courts Justice. The High Courts Judicial Database (HCJD) provides coded information on the content of universes or random samples of the decisions produced by eleven of the top courts of the world. edit
44. Historical Reported Voting Rates Subfield: Voting and Elections. Multiple key indicatiors of voter participation at state level since 1960s and 1970s edit
45. ICPSR Web Site ICPSR maintains a data archive of more than 500,000 files of research in the social sciences, great place to start. Browse by topic. edit
46. Institute for Democracy and Electoral Assistance Datasets Subfield: Comparative Politics. Measured related to sustainable democracy worldwide edit
47. Institutional Quality Dataset Subfield: Comparative Politics. From Aljaz Kuncic, covers 1990 - 2010 edit
48. Institutions and Elections Project Subfield: Comparative Politics. contains information on de jure institutional provisions, electoral procedures, and electoral events for 170 countries in the period 1960–2012 edit
49. IQSS Dataverse Network This Harvard project is a vast repository for social data, seach network and see new releases, also features authoring tools to publish data edit
50. Judicial Research Initiative Subfield: Law Courts Justice. From the University of South Carolina, easy to navigate site contains key datasets for judicial behavior research edit
51. KOF Index of Globalization Subfield: Comparative Politics. measures the three main dimensions of globalization: economic, social, and political. edit
52. Legislative Effectiveness Project (LEP) Subfield: American Politics. precise research methodology to calculate a Legislative Effectiveness Score for each member of the House of Representatives edit
53. MacroDataGuide International social science resource, it informs not only on which data are out there and where they can be found, it also provides a qualitative assessement of these resources edit
54. Maddison Project Database Subfield: Comparative Politics. Estimates of economic growth in the world economic between AD 1 and 2010 edit
55. Manifesto Project Database Subfield: Comparative Politics. provides the scientific community with parties' policy positions derived from a content analysis of parties' electoral manifestos. edit
56. National Conference of State Legislatures Subfield: American Politics. NCSL research and special features contain a wealth of informatiom about state legislatures edit
57. North Carolina Center for Public Policy Research Subfield: American Politics. publishes among other things, legislator and lobbyist effectiveness rankings edit
58. Open States by the Sunlight Foundation Subfield: American Politics. Open States is a collection of tools that make it possible for citizens to track what is happening in their state's capitol by aggregating information from all 50 states, Washington, D.C., and Puerto edit
59. Penn World Table Subfield: Comparative Politics. database with information on relative levels of income, output, input and productivity, covering 182 countries between 1950 and 2014 edit
60. Pew Research Center Datasets Subfield: Public Opinion Surveys. Track key national, political, economic and demographic trends over time edit
61. Policy Agendas Project Subfield: American Politics. This UT Austin project collects and organizes data from various archived sources to trace changes in the national policy agenda and public policy outcomes since the Second World War. edit
62. Political Institutions and Public Choice Program Data Subfield: American Politics. Focused on the House of Representatives edit
63. Presidency Research Subfield: American Politics. Data and links compiled by George Edwards and Ohbet Cheon edit
64. Presidential Power Scores Subfield: Comparative Politics. presidential power scores for 116 countries across 181 time periods edit
65. Presidential Research Group Data Sites Subfield: American Politics. Includes the Database of Historical Congressional Statistics edit
66. Qualitative Data Repository QDR selects, ingests, curates, archives, manages, durably preserves, and provides access to digital data used in qualitative and multi-method social inquiry. edit
67. Quality of Government Institute Subfield: Comparative Politics. research on the causes, consequences and nature of Good Governance and the Quality of Governmen edit
68. Quandl Collection of links to biggest data-producers, esp. economic and demographic data from governments edit
69. Reddit Datasets Super diverse collection of datasets, unusual, interesting subjects, some related to politics edit
70. Religion Data Archives Subfield: American Politics. A collection of surveys, polls, and other data submitted by researchers and made available online by the ARDA. edit
71. Religious Data: Association of Religious Data Archives Subfield: Public Opinion Surveys. More than public opinion surveys, but public opinion surveys are biggest category of religious data edit
72. Social Feed Manager Subfield: Public Opinion Surveys. open source software that harvests social media data and web resources from Twitter, Tumblr, Flickr, and Sina Weibo. It empowers researchers, faculty, students, and archivists to define and create collections of data. edit
73. State of First Amendment Surveys Subfield: Public Opinion Surveys. Examines public attitudes toward freedom of speech, press, religion and the rights of assembly and petition. edit
74. State Policy Index Subfield: American Politics. State and Local Public Policies in the United States is an ongoing research project and data compendium. On this website you can download spreadsheets containing data on state policies. edit
75. StateMaster.com Subfield: American Politics. allows you to research and compare a multitude of different data on US states based on different variables edit
76. Supreme Court Citation Network Data Subfield: Law Courts Justice. This page contains links to two sets of data on citations in the U.S. Supreme Court from the U.S. Reports. edit
77. Supreme Court Database Subfield: Law Courts Justice. the definitive source, contains over two hundred pieces of information about each case decided between 1946 and 2012. edit
78. Survey Documentation and Analysis Subfield: Public Opinion Surveys. a set of programs for the documentation and Web-based analysis of survey data, inlcuding NES, GSS, and other surveys edit
79. The Political Constraint Index (POLCON) Dataset Subfield: Comparative Politics. From Witold Jerzy Henisz edit
80. TRAC Immigration Tool Subfield: Law Courts Justice. offers a variety of tools and applications to make the data we gather available in an understandable way to the American people, Congress, immigration groups and others. edit
81. Transitional Justice Research Collaborative Subfield: Law Courts Justice. data on three primary transitional justice mechanisms—human rights prosecutions, truth commissions, and amnesties—for 109 democratic transitions in 86 countries around the world, from 1970-2012. edit
82. Transparency Data Subfield: American Politics. a central source for federal lobbying disclosure, federal grants and contracts, earmarks and federal and state campaign contributions edit
83. Transparency International Subfield: Comparative Politics. A suite of measures of government corruption edit
84. U.S. Census Bureau: Data Web Subfield: American Politics. features a "ferret" program to search, merge and recode federal agency data edit
85. U.S. Elections Project Subfield: Voting and Elections. an information source for the United States electoral system. edit
86. U.S. House Election Results Archive Subfield: Voting and Elections. From the Office of the Clerk, official vote counts in congressional elections since 1920 edit
87. UCDP/PRIO Armed Conflict Dataset Subfield: International Relations. A dataset of armed conflicts, both internal and external, in the period 1946 to the present. edit
88. United States Election Projecr Subfield: American Politics. information source for the United States electoral system; great data on voter turnout. edit
89. Updated U.S. Congress Roll Call Data Subfield: American Politics. Download up to the minute roll calling voting data from the US Senate and US House. Data are culled from the Congress edit
90. V-Dem (Varieties of Democracy) Subfield: Comparative Politics. aims to produce better Indicators of Democracy. edit
91. Vetoes by U.S. Presidents, 1789-present Subfield: American Politics. From the U.S. Senate library edit
92. Voteview.com Subfield: American Politics. Keith Poole's web site for data on U.S. Congress, well-organized, thoroughly documented, updated frequently edit
93. Voting Technology Project Data Subfield: Voting and Elections. seeks to develop better voting technologies, to improve election administration, and to deepen scientific research in these areas edit
94. World Bank's Data Catalog Subfield: Comparative Politics. The data catalog is a listing of available World Bank datasets, including databases, pre-formatted tables, reports, and other resources. edit
95. World Values Survey Subfield: Public Opinion Surveys. The WVS consists of nationally representative surveys conducted in almost 100 countries which contain almost 90 percent of the world edit

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