Time-sharing Experiments for the Social Sciences (TESS) offers researchers the opportunity to capture the internal validity of experiments while also realizing the benefits of working with a large, diverse population of research participants.

Investigators submit proposals for experiments, and TESS fields successful proposals for free on a representative sample of adults in the United States using NORC's AmeriSpeakĀ® Panel, a probability-based and highly-respected representative survey platform.

The current principal investigators of TESS are Maureen Craig (New York University), James Druckman (Northwestern University), and Jeremy Freese (Stanford University). The Managing Principal Investigator is Hannah Hamilton (University of Chicago). TESS was started by Arthur Lupia (University of Michigan) and Diana Mutz (University of Pennsylvania).

TESS is funded by the National Science Foundation (SES-2017581).


Announcing the Winners of the Special Competition Using Targeted Samples

Congratulations to the winners of the 2022 Special Competition Using Targeted Samples!

Julie Kmec, "Racialized Organizations and the Reproduction of Inequality: Assessing Support for Whiteness as a Credential and the Preservation of Racial Ignorance"

Claire Willeck & Tali Mendelberg, "Active Civics and Engagement"

Melissa Vega, Eric Knowles, & Jaime Napier, "The Future of Latinosā€™ Policy Attitudes Amid the Rising Diversity in the United States"

Aliya Saperstein, "Optimizing Surveys: Studying Gender and Health Among LGBT Americans"

Jacob Rode & Josh Greene, "The Tesla effect: Increasing Republican support for electric vehicle adoption through engagement with a value-aligned product"

William Schulz, "Platform Effects: Estimating Online vs. Offline Polarization & Self-Censorship in Political Speech"