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ERIC Number: EJ1006785
Record Type: Journal
Publication Date: 2013-Feb
Pages: 2
Abstractor: As Provided
ISSN: ISSN-0022-006X
Correct Effect Size Estimates for Strength of Association Statistics: Comment on Odgaard and Fowler (2010)
Lerner, Matthew D.; Mikami, Amori Yee
Journal of Consulting and Clinical Psychology, v81 n1 p190-191 Feb 2013
Odgaard and Fowler (2010) articulated the importance of reporting confidence intervals (CIs) on effect size estimates, and they provided useful formulas for doing so. However, one of their reported formulas, pertaining to the calculation of CIs on strength of association effect sizes (e.g., R[squared] or [eta][squared]), is erroneous. This comment identifies the error and provides 2 accurate alternatives. An illustration is presented, and the importance of authors' specification of their chosen CI estimation formula is asserted. (Contains 6 footnotes.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail:; Web site:
Publication Type: Journal Articles; Opinion Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A