ERIC Number: EJ667565
Record Type: Journal
Publication Date: 2003
Reference Count: N/A
Estimation of Internal Consistency Reliability When Test Parts Vary in Effective Length.
Feldt, Leonard S.; Charter, Richard A.
Measurement and Evaluation in Counseling and Development, v36 n1 p23-27 Apr 2003
Evaluating a test's reliability often requires dividing it into 3 or more unequal parts, which causes violation of the tau equivalence assumption of Cronbach's alpha. This article presents a criterion for abandoning alpha and an approach for computing a more appropriate estimate of reliability, the Gilmer-Feldt coefficient. (Author)
Publication Type: Journal Articles
Education Level: N/A
Authoring Institution: N/A