Political Science Data: Find Data, Produce Results, Share Insights.

SPECIAL EDITION: N of 1? Studying the Political Phenomena of Donald Trump

ORIGINAL PROJECT: U.S. Presidents' Positions on Roll Call VotesPres. Washington's Positions:
1st House     1st Senate
2nd House     2nd Senate
3rd House     3rd Senate
4th House     4th Senate

QUIZ YOURSELF: What is multicollinearity?

Multicollinearity occurs when the independent variables are related to each other so strongly that it becomes difficult to estimate the partial effect of each independent variable on the dependent variable.

Answer: Hover over the box!More of this: Review Research Methods

Teach Political Analysis

Theory & Concepts:
The Essentials of Political Analysis, 6th Edition. Classic introductory text, clear writing, helps students learn, great ancillaries. More info.

Companions for SPSS, Stata, Excel & R. Practice with software of your choice.

MORE FOR TEACHERS: Sample Course Syllabi featuring our textbooks, varied software, with/without paper assignments

Review Terms for 5 Minutes - Pick chapters or just press play for quick study

Run Live R Demos in Browser - Excellent for online teaching

Links to More Resources for Teaching Political Analysis

Watch and Learn


Excel Printing Problems, Solved
Leila Gharani shares tips and suggestions for efficient printing (10:50).

MORE VIDEOS: Lecture Videos for The Essentials of Political Analysis

Learn How-To Do It with Video Tutorials for R, Stata, SPSS, and Excel


Advanced Filter Options Using Criteria Ranges
Leila Gharani shows how to create interactive filters on worksheets (7:23)

Blogs, Podcasts & Journals

International Theory: .A peer reviewed journal which promotes theoretical scholarship about the positive, legal, and normative aspects of world politics respectively.

Social Alternatives: .An independent, quarterly refereed journal which aims to promote public debate, commentary and dialogue about contemporary social, political, economic and environmental issues.

Am. Rev. of Politics: .Publishes original research on American political development, Southern Politics, early American political thought, and American political process.

J. of Experimental Political Science: .Features research that utilizes experimental methods or experimental reasoning based on naturally occurring data.

J. of Public Admin. Research & Theory: .Serves as a bridge between public administration and public management scholarship on the one hand and public policy studies on the other.

See All Political Science Blogs

Data Sites

State Antiquity Index: .This dataset gives a score from 0 to 50 for the presence of a supra-tribal polity within the present-day boundaries of each of 149 countries.

Sexual Violence in Armed Conflict: .Measures reports of the conflict-related sexual violence committed by armed actors (state forces, pro-government militias and rebel groups) during the years 1989-2009.

Statistics South Africa: .Data on people, economy, and living conditions.

GESIS: Data Archive for the Social Sciences: .national and international comparative surveys from the fields of social and political science research

Comparative Agendas Project: .Collects and organizes data from archived sources to track policy outcomes across countries. See dataset codebooks.

See All Data Sites

Peer-Reviewed Articles with Replication Data Online

Searching for Bright Lines in the Trump PresidencyJohn Carey; Gretchen Helmke; *Brendan Nyhan; Mitchell Sanders; Susan Stokes (2019)

Is There a Trump Effect? An Experiment on Political Polarization and Audience CostsMiles Evers; Aleksandr Fisher; Steven Schaaf (2019)

Collision with Collusion: Partisan Reaction to the Trump-Russia ScandalJoshua Darr (2019)

Does Party Trump Ideology? Disentangling Party and Ideology in AmericaMichael Barber; Jeremy Pope (2019)

Activating Animus: The Uniquely Social Roots of Trump SupportLilliana Mason; Julie Wronski; John V. Kane (2021)

Primary Model Predicts Trump Re-electionHelmut Norpoth (2021)

#NeverTrump: Why Republican Members of Congress Refused to Support Their Party's Nominee in the 2016 Presidential ElectionJordan Ragusa; Lauren R. Johnson; Deon McCray (2018)

The Impact of COVID-19 on Trump's Electoral Demise: The Role of Economic and Democratic AccountabilityAnja Neundorf; Sergi Pardos-Prado (2020)

= Abstract

= Data

= Details
Also see Journal Data Archives | Author Replication Data
Past Special Editions: Politics of Gun Violence in the U.S. | Russia Invades Ukraine

Authors with Datasets

Kim, Sung Eun .

Shor, Boris .

Hegre, Havard .Uppsala University, see data

Tavits, Margit .

Leeper, Thomas .

Schoen, Harald .

Dassonneville, Ruth .

Tokdemir, Efe .Bilkent University

Blattman, Chris .Harris School of Public Policy at the Univ. of Chicago, see datasets on research page.

Hall, Matthew .University of Notre Dame, see replication data and large datasets.

See All Authors with Datasets