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Reporting Effect Size [microform] : The Road Less Traveled / James H. McMillan, Sonya Lawson and Kristi Lewis
Bib ID 5693671
Format BookBook, MicroformMicroform, OnlineOnline
Author
McMillan, James H
 
Online Versions
Description [Washington, D.C.] : Distributed by ERIC Clearinghouse, 2002 
18 p. 
Summary

This paper is intended to raise awareness of the need to understand and include effect size statistics in research reports. The paper summarizes what is meant by effect size and why it is important in educational research. It then presents findings of a review of recent issues of four journals to determine the use of effect size by researchers. The paper also suggests some reasons effect size is not reported more commonly and offers some suggestions for increasing the use of such statistics. The four journals on which the review is based were chosen to provide a representative sample of educational research literature with a focus on quantitative studies. Of the 508 articles classified as quantitative or mixed method, 148 mentioned or calculated effect size, but only 82 articles included a calculation of effect size and at least limited discussion of magnitude or practical significance. Only 30 articles contained a calculated effect size and extensive discussion about effect size or magnitude. Most often, conclusions in these journals are made solely from the results of statistical inference tests. (Contains 4 tables and 36 references.) (SLD)

Notes

ERIC Note: Paper presented at the Annual Meeting of the American Educational Research Association (New Orleans, LA, April 1-5, 2002).

May also be available online. Address as at 14/8/18: https://eric.ed.gov/

Reproduction Microfiche. [Washington D.C.]: ERIC Clearinghouse microfiches : positive. 
Subjects Educational Research.  |  Effect Size.  |  Research Reports.  |  Scholarly Journals.  |  Statistical Analysis.
Form/genre Information Analyses.  |  Speeches/Meeting Papers.
Other authors/contributors Lawson, Sonya, author  |  Lewis, Kristi, author  |  Snyder, Angela, author
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