“Evaluation of Evidence-Based Practices in Online Learning: A Meta-Analysis and Review of Online Learning Studies”


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Barbara Means, et al.  Evaluation of Evidence-Based Practices in Online Learning: A Meta-Analysis and Review of Online Learning Studies.  United Stated Department of Education, Office of Planning, Evaluation, and Policy Development , Policy and Program Studies Services, September 2010.

Abstract: A systematic search of the research literature from 1996 through July 2008 identified more than a thousand empirical studies of online learning. Analysts screened these studies to find those that (a) contrasted an online to a face-to-face condition, (b) measured student learning outcomes, (c) used a rigorous research design, and (d) provided adequate information to calculate an effect size. As a result of this screening, 51 independent effects were identified that could be subjected to meta-analysis. The meta-analysis found that, on average, students in online learning conditions performed better than those receiving face-to-face instruction. The difference between student outcomes for online and face-to-face classes–measured as the difference between treatment and control means, divided by the pooled standard deviation–was larger in those studies contrasting conditions that blended elements of online and face-to-face instruction with conditions taught entirely face-to-face. Analysts noted that these blended conditions often included additional learning time and instructional elements not received by students in control conditions. This finding suggests that the positive effects associated with blended learning should not be attributed to the media, per se. An unexpected finding was the small number of rigorous published studies contrasting online and face-to-face learning conditions for K-12 students. In light of this small corpus, caution is required in generalizing to the K-12 population because the results are derived for the most part from studies in other settings (e.g., medical training, higher education).

The full list of preparers is Barbara Means, Yukie Toyama, Robert Murphy, Marianne Bakia, Karla Jones.

The full report is available here on ERIC.

Rick W. Burkett runs the John A. Logan College Teaching and Learning Center, teaches history, and heads an educational nonprofit. He publishes blogs on a wide variety of topics, including history, teaching and learning, student success, and teaching online.

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