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Testing Variances in Psychological and Educational Research

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  • Philip H. Ramsey

Abstract

A review of the literature has shown that robust procedures for testing variances have become available. The two best procedures are one proposed by O’Brien (1981) and another by Brown and Forsythe (1974). An examination of these procedures for a wide variety of populations confirms their robustness and indicates that optimal power can usually be obtained by applying a test for kurtosis to aid in the decision between these two procedures.

Suggested Citation

  • Philip H. Ramsey, 1994. "Testing Variances in Psychological and Educational Research," Journal of Educational and Behavioral Statistics, , vol. 19(1), pages 23-42, March.
    • Handle: RePEc:sae:jedbes:v:19:y:1994:i:1:p:23-42
    DOI: 10.3102/10769986019001023
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