Welcome to the ISPS Data Archive!

The ISPS Data Archive consists primarily of social science research based on experiments. The Archive is organized by study and includes the data, analysis code, requisite documentation, and other associated materials. All published materials have been reviewed to enable long-term usability. Read about our approach to curating for reproducibility. Access to the ISPS Data Archive is provided at no cost and is granted for scholarship and research purposes only.

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Titlesort ascending Author(s) Year archived
Work Requirements and Perceived Deservingness of Medicaid

Jennifer Wu

Which Elections Can Be Lost?

Nikolay Marinov, Susan D. Hyde

When to Worry about Sensitivity Bias: A Social Reference Theory and Evidence from 30 Years of List Experiments

Maggie Moor, Graeme Blair, Alexander Coppock

When Politicians Cede Control of Resources: Land, Chiefs, and Coalition-Building in Africa

Kate Baldwin

What You See and What You Get: Direct and Indirect Political Dividends of Public Policies

Cesar Zucco, Natalia Bueno, Felipe Nunes

Were Newspapers More Interested in pro-Obama Letters to the Editor in 2008? Evidence from a Field Experiment.

Emily Schofield, Daniel Butler

Voter Attitudes When Democracy Promotion Turns Partisan: Evidence From a Survey-Experiment in Lebanon

Nikolay Marinov

Using Random Judge Assignments to Estimate the Effects of Incarceration and Probation on Recidivism Among Drug Offenders

Donald P. Green, Daniel Winik

Understanding the Party Brand: Experimental Evidence on the Role of Valence

Eleanor Neff Powell, Daniel Butler

Trading Barriers: Immigration and the Remaking of Globalization

Margaret E. Peters

Timing Is Everything? Primacy and Recency Effects in Voter Mobilization Campaigns

Costas Panagopoulos

The “Race Card” Revisited: Assessing Racial Priming in Policy Contests

Gregory Huber, John S. Lapinski

The Small Effects of Political Advertising are Small Regardless of Context, Message, Sender, or Receiver: Evidence From 59 Real-time Randomized Experiments

Seth J. Hill, Lynn Vavreck, Alexander Coppock

The Observer Effect in International Politics: Evidence from a Natural Experiment

Susan D. Hyde

The Majority-Minority Divide in Attitudes Toward Internal Migration: Evidence from Mumbai

Gareth Nellis, Nikhar Gaikwad

The Impact of Electoral Debate on Public Opinions: An Experimental Investigation of the 2005 New York City Mayoral Election

Sendhil Mullainathan, Julia Azari, Ebonya Washington

The Generalizability of Online Experiments Conducted During the COVID-19 Pandemic

Kyle Peyton, Gregory Huber, Alexander Coppock

The Effect of Priming Structural Fairness on Inequality Beliefs and Preferences

Gregory Huber, Paul Lendway

The Conscription of Wealth: Mass Warfare and the Demand for Progressive Taxation

David Stasavage, Kenneth Scheve

The Causal Effects of Elite Position-Taking on Voter Attitudes: Field Experiments with Elite Communication

Daniel Butler, David E. Broockman