A New and Simpler Approximation for ANOVA under Variance Heterogeneity.

Alexander, Ralph A.; Govern, Diane M.

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Peer reviewed

ERIC Number: EJ488846

Record Type: Journal

Publication Date: 1994

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ISSN: ISSN-0362-9791

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A New and Simpler Approximation for ANOVA under Variance Heterogeneity.

Alexander, Ralph A.; Govern, Diane M.

Journal of Educational Statistics, v19 n2 p91-101 Sum 1994

A new approximation is proposed for testing the equality of "k" independent means in the face of heterogeneity of variance. Monte Carlo simulations show that the new procedure has nearly nominal Type I error rates and Type II error rates that are close to those produced by James's second-order approximation. (SLD)

Descriptors: Analysis of Variance, Computer Simulation, Equations (Mathematics), Monte Carlo Methods, Sampling, Statistical Studies

Publication Type: Reports - Research; Journal Articles

Education Level: N/A

Audience: N/A

Language: English

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