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ERIC Number: ED438307
Record Type: Non-Journal
Publication Date: 2000-Jan-27
Pages: 24
Abstractor: N/A
Reference Count: N/A
A Review of Coefficient Alpha and Some Basic Tenets of Classical Measurement Theory.
Guthrie, Abbie C.
Too many researchers speak of "the reliability of the test," thus indicating their basic misunderstanding of reliability. This paper explains classical reliability and the score features that influence coefficient alpha. It explains when coefficient alpha can be negative, even though it is conceptually a variance-accounted-for statistic. The recent recommendations of the American Psychological Association Task Force on Statistical Inference emphasize score reliability, because poor score reliability attenuates detected effect sizes. (Contains 24 references.) (Author/SLD)
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Audience: Researchers
Language: English
Sponsor: N/A
Authoring Institution: N/A