Reliability Estimation for a Test with Parts of Unknown Lengths.

Gilmer, Jerry S.; Feldt, Leonard S.

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Peer reviewed

ERIC Number: EJ283387

Record Type: Journal

Publication Date: 1983-Mar

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Reliability Estimation for a Test with Parts of Unknown Lengths.

Gilmer, Jerry S.; Feldt, Leonard S.

Psychometrika, v48 n1 p99-111 Mar 1983

Estimating the reliability of measures derived from separate questions on essay tests or individual judges on a rater panel is considered. Cronbach's alpha is shown to underestimate reliability in these cases. Some alternative coefficients are presented. (JKS)

Descriptors: Essay Tests, Item Analysis, Measurement Techniques, Rating Scales, Test Reliability

Publication Type: Journal Articles; Reports - Research

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Language: English

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