Identifying Negatively Discriminating Items When Test Scores Are Not Normally Distributed.

Fowler, Robert L.; Clingman, Joy M.

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Peer reviewed

ERIC Number: EJ443873

Record Type: Journal

Publication Date: 1992

Pages: N/A

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ISSN: ISSN-0013-1644

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Identifying Negatively Discriminating Items When Test Scores Are Not Normally Distributed.

Fowler, Robert L.; Clingman, Joy M.

Educational and Psychological Measurement, v52 n1 p31-39 Spr 1992

Monte Carlo techniques are used to examine the power of the "B" statistic of R. L. Brennan (1972) to detect negatively discriminating items drawn from a variety of nonnormal population distributions. A simplified procedure is offered for conducting an item-discrimination analysis on typical classroom objective tests. (SLD)

Descriptors: Classroom Techniques, Elementary Secondary Education, Equations (Mathematics), Item Analysis, Item Bias, Mathematical Models, Monte Carlo Methods, Objective Tests, Power (Statistics), Scores, Statistical Distributions, Test Items

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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