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 AmeriSpeak® Panel, a probability-based and highly-respected representative survey platform.

The current principal investigators of TESS are Jeremy Freese (Stanford University) and James Druckman (Northwestern University). TESS was started by Arthur Lupia (University of Michigan) and Diana Mutz (University of Pennsylvania).

TESS is funded by the National Science Foundation (SES-1628057).


Announcing the Winners of the First TESS Teen Study

Congratulations to the winners of the 2020 TESS Teen Study!

James Chu, "Educational Rankings and Adolescent Perceptions of College Cost"

Emily Vraga and Stephanie Edgerly, "New generation, new notion of news? Measuring news-ness based on relevance, topic, and context among teens"

Cameron Hecht and David Yeager, "When and How Teachers Communicate Growth Mindset Affordances to Adolescents"

David Campbell and Christina Wolbrecht, "The Effects of Exposure to Women Candidates on Adolescents’ Political Attitudes"

Kevin Arceneaux, Johanna Dunway, David Nickerson, and Jamie Settle, "Political Cue Taking on Social Media Among Teens"

Sara Morell, Lauren Hahn, and Mara Ostfeld, "All in the Family: The Effects of Familial Attitudes on Women’s Support for Pro-Women Policies"

We are looking forward to the exciting research conducted with these teen samples.