"The College Board has suggested a “college readiness benchmark” that works out to roughly 500 on each portion of the SAT as a score below which students are not likely to achieve at least a B-minus average at “a four-year college”—presumably an average one. (By comparison, at Ohio State University, a considerably better-than-average school ranked 52nd among U.S. universities by U.S. News & World Report, freshmen entering in 2014 averaged 605 on the reading section of the SAT and 668 on the math section.)
How many high-school students are capable of meeting the College Board benchmark? This is not easy to answer, because in most states, large numbers of students never take a college-entrance exam (in California, for example, at most 43 percent of high-school students sit for the SAT or the ACT). To get a general sense, though, we can look to Delaware, Idaho, Maine, and the District of Columbia, which provide the SAT for free and have SAT participation rates above 90 percent, according to The Washington Post. In these states in 2015, the percentage of students averaging at least 500 on the reading section ranged from 33 percent (in D.C.) to 40 percent (in Maine), with similar distributions scoring 500 or more on the math and writing sections. Considering that these data don’t include dropouts, it seems safe to say that no more than one in three American high-school students is capable of hitting the College Board’s benchmark. Quibble with the details all you want, but there’s no escaping the conclusion that most Americans aren’t smart enough to do something we are told is an essential step toward succeeding in our new, brain-centric economy—namely, get through four years of college with moderately good grades."