In principle, experiments offer a straightforward method for social scientists to accurately
estimate causal effects. However, scholars often unwittingly distort treatment effect estimates …

Amazon's Mechanical Turk (MTurk) is an increasingly popular tool for the recruitment of
research subjects. While there has been much focus on the demographic differences …

Research on the emotional, cognitive, and social determinants of moral judgment has
surged in recent years. The development of moral foundations theory (MFT) has played an …

Partisan bias and hostility have increased substantially over the last few decades in the
American electorate, and previous work shows that partisan strength and sorting help drive …

Social scientists are frequently interested in who is most responsive to a treatment. By
necessity, such moderation experiments often rely on observed moderators, such as …

Humanitarian interventions (HIs) are a common aspect of US foreign policy. Policy makers
acknowledge the importance of public support for interventions, but scholars remain divided …

Abstract Amazon Mechanical Turk (AMT) is an online labor market that is being used
increasingly often in the social sciences. This occurs despite significant questions regarding …

The strength of an individual's identification with their political party is a powerful predictor of
their engagement with politics, voting behavior, and polarization. Partisanship is often …

Trait stereotypes are a fundamental form of social cognition that influence public opinion. A
long line of literature has established partisan stereotypes of politicians, but we know less …

Is party “ownership” of issues and traits manifest in the minds of voters in ways that could
generate the oft-hypothesized implications for mass and elite electoral behavior? We specify …