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Peer reviewed Peer reviewed
ERIC Number: EJ249407
Record Type: CIJE
Publication Date: 1981
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Coefficients of Effective Length.
Edwards, Roger H.
Educational and Psychological Measurement, v41 n2 p283-85 Sum 1981
Under certain conditions, a validity Coefficient of Effective Length (CEL) can produce highly misleading results. A modified coefficent is suggested for use when empirical studies indicate that underlying assumptions have been violated. (Author/BW)
Descriptors: Mathematical Formulas, Test Construction, Test Length
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Coefficient of Effective Length; Spearman Brown Formula