A Study of Methods for Comparing Several Variances
Journal of the American Statistical AssociationPublished 1 June 1972
Peter S. Gartside
Citations65
SJR quartileQ1
SJR score4.10
SNIP3.08
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Abstract
Abstract Abstract A variety of statistics are available for testing the homoscedasticity of several populations. In this article a number of these statistics are compared for power and for stability of error rates. Bartlett's statistic is seen to be very powerful in all the experimental cases considered here. Under a condition of non-normality the only statistic to maintain stable error rates is the one using the logarithmic transformation with the analysis of variance.
Keywords
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