Is it Live or is it Internet? Experimental Estimates of the Effects of Online Instructi... - 2 views
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Cameron Paterson on 19 Sep 10This paper 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. Counter to the conclusions drawn by a recent U.S. Department of Education meta-analysis of non-experimental analyses of internet instruction in higher education, 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.
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Chris Dede on 19 Sep 10The authors are very misleading in their claim that this study is the first on live versus internet. There is a huge literature on this topic stretching back decades. The claims about the generalizability of the study are also very suspect.
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Justin Reich on 20 Sep 10Chris, I think the authors are claiming it is the first experimental trial where participants were randomly assigned to a treatment or control condition. They contrast their study with the DOE meta-analysis, which I don't think includes experimental studies--at least as experiments are defined within econometrics. My problem with the study is that they are aren't really comparing live vs. internet so much as live vs. recorded video. They are very careful to not take advantage of any of the potential affordances of internet mediated instruction, except broadcasting a lecture, to preserve the "purity" of their experiment. Of course, that's not a terribly interesting experiment. The more interesting experiments, which they deride as "not apples-to-apples," is to compare a traditional lecture format with an online course that takes full advantage of the affordances of the internet. These studies would confound the carefully balanced design of an apples-to-apples comparison, but no serious education technologist thinks we should just record all the lectures and post them...