Using Extreme Groups Strategy When Measures Are Not Normally Distributed.

Fowler, Robert L.

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Peer reviewed

ERIC Number: EJ460535

Record Type: Journal

Publication Date: 1992

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ISSN: ISSN-0146-6216

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Using Extreme Groups Strategy When Measures Are Not Normally Distributed.

Fowler, Robert L.

Applied Psychological Measurement, v16 n3 p249-59 Sep 1992

A Monte Carlo simulation explored how to optimize power in the extreme groups strategy when sampling from nonnormal distributions. Results show that the optimum percent for the extreme group selection was approximately the same for all population shapes, except the extremely platykurtic (uniform) distribution. (SLD)

Descriptors: Construct Validity, Equations (Mathematics), Mathematical Models, Monte Carlo Methods, Power (Statistics), Sampling, Statistical Distributions

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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