The New York Times: “Nearly all colleges … make use of two metrics to gauge student quality: cumulative high school grade point average and composite score on the ACT … But research has shown that these metrics are imperfect: They are less predictive of student success than alternative measures that are equally simple to calculate and whose use would lead to a better incoming class.”
“Consider grade point average. Students whose overall G.P.A. is a result of doing better later in high school … are much more likely to succeed in college than students with the same overall G.P.A. who did better early in high school … A paper in The Journal of Public Economics … shows that an additional G.P.A. point in 11th grade makes a student 16 percentage points more likely to graduate from college, whereas an additional G.P.A. point in ninth grade makes a student only five percentage points more likely to graduate from college.”
“Something similar is true of ACT composite scores … college admissions offices are giving equal weight to each of the four subtests. But in a 2013 paper … (provides) evidence that the math and English subject tests are far more predictive of college success than the reading and science tests … Colleges may also be reluctant to adopt these more predictive metrics because popular college rankings … use the old metrics in their calculations. Admissions officers may also lack the proper incentives or feedback … Whether or not a student does well in college is not something you can typically determine until a few years after the admissions decision, and thus admissions officers may not feel that they are blamed or rewarded for student success”
