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Peer reviewed Peer reviewed
ERIC Number: EJ393076
Record Type: CIJE
Publication Date: 1989
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
A Derivation of Levine's Formulae (for Equating Unequally Reliable Tests Using Random Groups) without the Assumption of Parallelism.
MacCann, Robert G.
Educational and Psychological Measurement, v49 n1 p53-58 Spr 1989
Levine's equations for random groups and unequally reliable tests can be used to equate two tests through performance on an anchor test. Levine's assumption of a parallelism requirement is not necessary; it is sufficient to assume only that the tests are congeneric, an assumption implicit in linear test equating. (SLD)
Descriptors: Equated Scores, Equations (Mathematics), Latent Trait Theory, Test Reliability, Testing Problems
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Anchor Tests; Levine Equating Method; Linear Equating Method; Parallel Tests; Random Variables