Findings give boost to online classes

The burgeoning movement to put more college classes online, which attracted the support of Harvard University and the Massachusetts Institute of Technology earlier this month, is getting another endorsement that may have an even greater impact: rigorous evidence that the computer can be as effective as the classroom. A new study compared two versions of an introductory statistics course, one taught face to face by professors and one mostly taught online with only an hour a week of face time.