Teacher’s Corner: What to Do With the Upward Bias in R 2: A Comment on Huberty

Tom A. B. Snijders

Journal of Educational and Behavioral Statistics, 1996, vol. 21, issue 3, 283-287

Abstract: A recent article by Huberty (1994) discusses significance testing of R 2 in linear regression and the definition of a corresponding effect size index. It recommends an adjustment to the standard null hypothesis, p 2 = 0, in order to adjust for an upward bias in the statistic R 2 . This note suggests that the adjustment proposed by Huberty has some conceptual shortcomings. Existing improvements on R 2 are described in some detail.

Keywords: coefficient of determination; effect size; multiple correlation coefficient (search for similar items in EconPapers)
Date: 1996
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Persistent link: https://EconPapers.repec.org/RePEc:sae:jedbes:v:21:y:1996:i:3:p:283-287

DOI: 10.3102/10769986021003283

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