Person biking on the Philadelphia Schuykill River walk in the evening
Social Action Lab


Silhouette of a person looking out a window from a modern building

Action-Inaction & Motivation

Characterizing general action and inaction goals and how they have an impact on individuals and on society as a whole

Hands holding up a red HIV ribbon in front of a sunset

Applications to Health

Our research on HIV, harm reduction associated with drug use, vaccination, and lifestyle improvements

Silhouette of two joggers running in the sunset

Behavioral Change

How do we change behavior and why is it so difficult?


Language & Behavior

How does our inner speech affect our thoughts and behavior?

View of five people holding iPhones, only hands are visible

Misinformation, Misconceptions, and Conspiracy Theories in Communication

Research on misinformation and dynamic changes to the accuracy of scientific information


Persuasion, Attitudes, & Social Cognition

Our work explores the psychological and communicative processes that underlie people’s attitudes and behaviors.

Woman on a public bus looking at her phone, and various social media "reaction" icons floating out of her phone to imply that she is engaging with social media

Health, Social Media & Technology Group

This interdisciplinary group studies social and online media influences on health behavior and epidemiological patterns and how to leverage social media and technology to improve human health.