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David Broockman is an American political scientist. He is an Associate Professor of Political Science at the University of California, Berkeley. He is best known for his research on reducing prejudice toward transgender people, which was widely covered in the national and international press.

Biography
Broockman's career in academia began in 2015, when he became an assistant professor at the Graduate School of Business at Stanford University. He was promoted to associate professor at Stanford in 2019 when he also became a National Fellow at the Hoover Institution. In 2020, he moved to become an associate professor of Political Science at the University of California, Berkeley.

Research
In 2015, while still a graduate student, Broockman along with Joshua Kalla and Peter Aronow, "exposure[d] one of the biggest scientific frauds in recent memory." They showed that a prominent study entitled "When Contact Changes Minds: An Experiment on Transmission of Support for Gay Equality” published in Science Magazine was fraudulent. The scientific paper was retracted after the senior author, Donald Green, requested that it be so. For exposing the fraud, Broockman and Kalla won the 2015 Leamer-Rosenthal Prize for Transparency in the Social Sciences.

The fraudulent paper purported to show that a single canvassing conversation can increase support for same-sex marriage in a durable way. The finding of fraud raised many doubts about the role of canvassing in political persuasion. Although the scientific article was found to be fraudulent, Broockman and Kalla conjectured that the underlying claim that high-quality door-to-door canvassing conversations could decrease prejudice might be true. In a subsequent article published in Science Magazine, Broockman and Kalla demonstrated that door-to-door canvassing successfully reduces transgender prejudice, with the effects persisting months later in follow-up surveys.

Brookman's other research has also received significant public attention. For example, in a 2013 study, Broockman argues that legislators consistently believe their constituents are more conservative than they actually are. He conjectures that this why it is so challenging to pass liberal laws.

In a 2017 article, he argues that there is significant heterogeneity in the preferences of wealthy individuals. The article shows that technology entrepreneurs support liberal redistributive, social, and globalist policies but conservative regulatory policies which is a combination of preferences that is rare among wealthy political donors more generally.