Derivations of Observed Score Equating Methods that Cater to Populations Differing in Ability.

MacCann, Robert G.

Notes FAQ Contact Us

Back to results

Peer reviewed

ERIC Number: EJ411256

Record Type: Journal

Publication Date: 1990

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: N/A

EISSN: N/A

Available Date: N/A

Derivations of Observed Score Equating Methods that Cater to Populations Differing in Ability.

MacCann, Robert G.

Journal of Educational Statistics, v15 n2 p146-70 Sum 1990

For anchor test equating, 3 linear observed score methods are derived for populations differing in ability. Each version requires that the correlations of the tests with the selection variable be known. Five sets of assumptions are made for each model--yielding 15 methods--which are then related to existing methods. (SLD)

Descriptors: Ability, Ability Grouping, Equated Scores, Equations (Mathematics), Item Response Theory, Mathematical Models, Statistical Analysis, Test Interpretation, True Scores

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

Author Affiliations: N/A