The authors complain that graduate programs at elite universities rely on standardized tests as a key contributor of racial bias. I am surprised by this. I susp

The authors complain that graduate programs at elite universities rely on standardized tests as a key contributor of racial bias. I am surprised by this. I suspect this is a misapplication of the racial bias studies that relate in high school (and lower) standardized tests. I would expect that strong undergraduate candidates to elite programs (e.g. 3.9+ GPA with letters of recommendation from professors) would not have statistically different GRE/LSAT/MCAT scores based on race. Has anyone studied high GPA students' GRE scores for racial bias?