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Psychometrika

, Volume 40, Issue 4, pp 519–524 | Cite as

An empirical comparison of theZ-variance and Box-Scheffé tests for homogeneity of variance

  • Kenneth J. Levy
Article

Abstract

This brief report provides a comparison of theZ-variance and Box-Scheffé tests for homogeneity of variance. Both procedures are relatively simple to perform and both may be readily utilized in complex, multifactor designs. TheZ-variance test is not robust against non-normality; the Box-Scheffé test is robust against non-normality but is not nearly as powerful as theZ-variance test.

Keywords

Public Policy Statistical Theory Empirical Comparison Multifactor Design 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Psychometric Society 1975

Authors and Affiliations

  • Kenneth J. Levy
    • 1
  1. 1.State University of New York at BuffaloUSA

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