I’m cynical about students. The vast majority are philistines.
The conventional view—that education pays because students learn—assumes that the typical student acquires, and retains, a lot of knowledge. She doesn’t. Teachers often lament summer learning loss: Students know less at the end of summer than they did at the beginning. But summer learning loss is only a special case of the problem of fade-out: Human beings have trouble retaining knowledge they rarely use. Of course, some college graduates use what they’ve learned and thus hold on to it—engineers and other quantitative types, for example, retain a lot of math. But when we measure what the average college graduate recalls years later, the results are discouraging, to say the least.
In 2003, the United States Department of Education gave about 18,000 Americans the National Assessment of Adult Literacy. The ignorance it revealed is mind-numbing. Fewer than a third of college graduates received a composite score of “proficient”—and about a fifth were at the “basic” or “below basic” level. You could blame the difficulty of the questions—until you read them. Plenty of college graduates couldn’t make sense of a table explaining how an employee’s annual health-insurance costs varied with income and family size, or summarize the work-experience requirements in a job ad, or even use a newspaper schedule to find when a television program ended. Tests of college graduates’ knowledge of history, civics, and science have had similarly dismal results.
Of course, college students aren’t supposed to just download facts; they’re supposed to learn how to think in real life. How do they fare on this count? The most focused study of education’s effect on applied reasoning, conducted by Harvard’s David Perkins in the mid-1980s, assessed students’ oral responses to questions designed to measure informal reasoning, such as “Would a proposed law in Massachusetts requiring a five-cent deposit on bottles and cans significantly reduce litter?” The benefit of college seemed to be zero: Fourth-year students did no better than first-year students.
Other evidence is equally discouraging. One researcher tested Arizona State University students’ ability to “apply statistical and methodological concepts to reasoning about everyday-life events.” In the researcher’s words:
Of the several hundred students tested, many of whom had taken more than six years of laboratory science … and advanced mathematics through calculus, almost none demonstrated even a semblance of acceptable methodological reasoning.