ANOVA: A Paradigm for Low Power and Misleading Measures of Effect Size?
ANOVA: A Paradigm for Low Power and Misleading Measures of Effect Size?
Over 30 years ago, Tukey made it evident that slight departures from normality can substantially lower power when means are compared, and that a popular measure of effect size can be highly misleading. At the time there were no methods for dealing with the problem raised in Tukey’s paper, and …