USING PLANNED COMPARISONS IN MANAGEMENT RESEARCH - A CASE FOR THE BONFERRONI PROCEDURE

This article describes the Bonferroni multiple-comparison procedure, a nd makes a case for researchers' more frequent and appropriate use of it. The procedure is discussed as a test that facilitates investigatio n of precise and powerful a priori multiple comparisons. Characteristi cs of the Bonferroni procedure are described in relation to the more f amiliar Scheffe post hoc multiple-comparison method, and a step-by-ste p guide for comparing and choosing between the two is provided. The Bo nferroni procedure is discussed in detail in the context of one-factor analysis-of-variance designs. Application of the technique is then co nsidered in the context of factorial designs, analyses of covariance, univariate repeated-measures analyses, multivariate analyses of varian ce, and recent sequential hypothesis-testing extensions. To aid the pr esentation, an example from the field of management is included.