Students who don't do assignments get A's

USA Today published an article which summarizes a nationwide survey of college students in the US. The study involved nearly 380,000 students from 722 four-year colleges. The study showed that about 20% of seniors and 25% of freshmen reported frequently going to class without completing the required readings or assignments. Yet, of these students who did not do their assignments, 29% of freshmen and 36% of seniors got mostly A's. Of what use, then, is going through the professor's readings? Read the article here.