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ERIC Number: EJ918794
Record Type: Journal
Publication Date: 2011-Apr
Pages: 11
Abstractor: As Provided
Reference Count: 21
ISSN: ISSN-0013-1644
Estimating the Effect of Changes in Criterion Score Reliability on the Power of the "F" Test of Equality of Means
Feldt, Leonard S.
Educational and Psychological Measurement, v71 n2 p420-430 Apr 2011
This article presents a simple, computer-assisted method of determining the extent to which increases in reliability increase the power of the "F" test of equality of means. The method uses a derived formula that relates the changes in the reliability coefficient to changes in the noncentrality of the relevant "F" distribution. A readily available computer applet translates the noncentrality parameter into the power value of the "F" test. (Contains 1 table.)
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A