We are a cross-university research lab (Dartmouth College, University of Pennsylvania and Stanford University). The lab exists to serve as a nexus for work on affective polarization, social trust, and political violence.

Our lab focuses on addressing the following critical questions:

  • What are the principal causes of affective polarization and what can be done to treat it?
  • When and where does affective polarization alter behavior? Why?
  • How effective and durable are approaches to reducing affective polarization?

Explore what we do

America’s Political Pulse

Plot and analyze trends in American political animosity measured with out data. Free and open datasets are also available.

Apply for survey time

Similar in spirit to TESS, we are looking for innovative work on polarization, democratic/social norms, and political violence (all broadly defined).  Proposals will be evaluated solely on scientific merit and will be awarded based on available survey space.  Selected proposals will be fielded on YouGov as part of our weekly tracking survey.

Annual meeting

At our meetings we bring together established scholars, graduate students, community groups and funders for a conference designed to highlight emerging academic work and to develop a network of academics and practitioners focused on the problem of partisan animosity.

Latest news

Perceptions on the Accuracy of the 2022 Midterms
Only 34.8% of Republicans agree that the 2022 midterms produced accurate results, while 81.7% of Democrats agree that the 2022 midterms produced accurate results.  Members of both parties have …
Inside the Republican Party: Results on MAGA Supporters vs. non-MAGA Republicans
MAGA Republicans are substantially more likely that non-MAGA Republicans to support democratic norms violations across the board. When it comes to support for political violence, we see that MAGA …
New Lab Results on those who Identify as Born Again
The PRL is now including "born again" identity status in our topline results. Insights across measures show interesting takeaways about those who identify as born again.  Affective polarization: Those who …
Support for Voting High ahead of Mid-terms
Results from the Lab from surveys through the end of October reveal positive news for democracy and voting. Enthusiasm for voting is strong for both parties, contrary to some …
Lab Results Reveal Interesting Insights on Democratic Norms
Ahead of the mid-term elections, new results from the Lab highlight three surprising results on support for democratic norm violations. The democratic norms we measure are: In-party elected officials …