Vehicle stop study illuminates importance of officer's first words PNASNews
An assistant professor in the Department of Computer Science, Rho is the lead author of a new research paper that illustrates how a's first 45 words during a vehicle stop with a Black driver can often indicate how the stop will end.
Rho began this research as a postdoctoral researcher at Stanford University, working alongside Jennifer Eberdhardt, a professor of organizational behavior and psychology, and Dan Jurafsky, a professor of computer science and linguistics.audio recordings "We limited the study to Black drivers because less than 1% of the escalated stops included non-Black drivers in our sample," Rho said."We included both male and female drivers, but escalated stops were predominately male drivers."
When analyzing the findings, controls were set in place to account for factors that could impact the language used, such as the reason the driver was pulled over, the area's crime rate, and more. During the second study, researchers played the audio from the traffic stops in the first study to a nationally representative sample of 188 Black male U.S. citizens ranging in age, region, education, and political ideology. Each participant was asked to listen to 10 stops at random—five that ended in escalation and five that did not—from the perspective of the driver and were then surveyed about their feelings and predictions for the stop's outcome.
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