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ERIC Number: EJ463391
Record Type: Journal
Publication Date: 1993
Pages: N/A
Abstractor: N/A
Reference Count: N/A
ISSN: ISSN-0013-1644
Coefficient Alpha as an Estimate of Test Reliability under Violation of Two Assumptions.
Zimmerman, Donald W.; And Others
Educational and Psychological Measurement, v53 n1 p33-49 Spr 1993
Coefficient alpha was examined through computer simulation as an estimate of test reliability under violation of two assumptions. Coefficient alpha underestimated reliability under violation of the assumption of essential tau-equivalence of subtest scores and overestimated it under violation of the assumption of uncorrelated subtest error scores. (SLD)
Publication Type: Reports - Evaluative; Journal Articles
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A