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Educational Measurement:…

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Cook, Linda L.	1
Eignor, Daniel R.	1
Kolen, Michael J.	1

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An NCME Instructional Module on Traditional Equating Methodology.

Peer reviewed

Kolen, Michael J. – Educational Measurement: Issues and Practice, 1988

An instructional module is presented to promote a conceptual understanding of test form equating using traditional methods. Equating is distinguished from scaling. The equating methods described are: (1) mean; (2) linear; and (3) equipercentile. The module includes a self-test. (SLD)

Descriptors: College Entrance Examinations, College Students, Equated Scores, Higher Education

NCME Instructional Module: IRT Equating Methods.

Peer reviewed

Cook, Linda L.; Eignor, Daniel R. – Educational Measurement: Issues and Practice, 1991

This paper provides the basis for understanding score equating through item response theory (IRT). Theoretical justifications and practical advantages of IRT true-score test procedures are discussed. Three steps in the equating process are specified, and a self-test is included. (SLD)

Descriptors: Equated Scores, Equations (Mathematics), Item Response Theory, Mathematical Models