Is It Live or Is It Internet? Experimental Estimates of the Effects of Online Instruction on Student Learning
通过随机实验比较现场授课与网络授课对大学生微观经济学成绩的影响，发现现场教学略优，尤其对西班牙裔、男性和低成就学生更明显。
This article presents the first experimental evidence on the effects of live versus Internet media of instruction. Students in a large introductory microeconomics course at a major research university were randomly assigned to live lectures versus watching these same lectures in an Internet setting where all other factors (e.g., instruction, supplemental materials) were the same. We find modest evidence that live-only instruction dominates Internet instruction. These results are particularly strong for Hispanic students, male students, and lower-achieving students. We also provide suggestions for future experimentation in other settings.