Robust Modifications of the Levene and O’Brien Tests for Spread

Authors

Abdul R. Othman, Universiti Sains, Malaysia
The Sin Yan, Universiti Sains Malaysia, Georgetown, Penang, Malaysia
H. J. Keselman, University of Manitoba, Winnipeg, Manitoba, Canada
Rand R. Wilcox, University of Southern California, Los AngelesFollow
James Algina, University of Florida

Abstract

Variants of Levene’s and O’Brien’s procedures not investigated by Keselman, Wilcox & Algina (2008) were examined. Simulations indicate that a new O’Brien variant provides very good Type I error control and is simpler for applied researchers to compute than the method recommended by Keselman, et al.

DOI

10.22237/jmasm/1335845040