bq. When it comes to grading, Republican and Democratic professors at one unnamed elite university put their ideologies into practice, a new study finds: Republicans welcomed inequality, handing out more very high and very low grades, and Democrats’ grades grouped more tightly around the average.
bq. Republicans also gave black students lower grades than their colleagues. In both cases, the researchers stressed, there was no way to know which approach better reflected students’ performance.
That’s from a post by Chris Shea at the Wall Street Journal’s Ideas Market blog, summarizing this paper (ungated pdf) by Talia Bar and Asaf Zussman. Here’s one of the graphs:
