The Ash Twins Blog

SUNY political scientist and former provost Peter Salins presents evidence in an NYTimes op-ed today that SAT scores are better predictors of college graduation than high school GPA’s:

In the 1990s, several SUNY campuses chose to raise their admissions standards by requiring higher SAT scores, while others opted to keep them unchanged. With respect to high school grades, all SUNY campuses consider applicants’ grade-point averages in decisions, but among the total pool of applicants across the state system, those averages have remained fairly consistent over time.

Thus, by comparing graduation rates at SUNY campuses that raised the SAT admissions bar with those that didn’t, we have a controlled experiment of sorts that can fairly conclusively tell us whether SAT scores were accurate predictors of whether a student would get a degree.

The short answer is: yes, they were. Consider the changes in admissions profiles and six-year graduation rates of the classes entering in 1997 and 2001 at SUNY’s 16 baccalaureate institutions. Among this group, nine campuses raised the emphasis they put on the SAT after 1997. This group included two prestigious research universities (Buffalo and Stony Brook) and seven smaller, regional colleges (Brockport, Cortland, New Paltz, Old Westbury, Oneonta, Potsdam and Purchase).

Among the campuses that raised selectivity, the average incoming student’s SAT score increased 4.5 percent (at Cortland) to 13.3 percent (Old Westbury), while high school grade-point averages increased only 2.4 percent to 3.7 percent — a gain in grades almost identical to that at campuses that did not raise their SAT cutoff.

Yet when we look at the graduation rates of those incoming classes, we find remarkable improvements at the increasingly selective campuses. These ranged from 10 percent (at Stony Brook, where the six-year graduation rate went to 59.2 percent from 53.8 percent) to 95 percent (at Old Westbury, which went to 35.9 percent from 18.4 percent).

Most revealingly, graduation rates actually declined at the seven SUNY campuses that did not raise their cutoffs and whose entering students’ SAT scores from 1997 to 2001 were stable or rose only modestly. Even at Binghamton, always the most selective of SUNY’s research universities, the graduation rate declined by 2.8 percent.