Welch vs Brown-Forsythe in ANOVA

Posted by ANDRES ALBERTO BURGA LEON on Jun 15, 2011; 9:08pm
URL: http://spssx-discussion.165.s1.nabble.com/Welch-vs-Brown-Forsythe-in-ANOVA-tp4493379.html


Hello to everybody:

I want to know in which conditions one of these corrections is recommended.


I've discarded the variance homogeneity hypothesis given the Levene results, but when I run both corrections, I get significant results (at .05) with Brown-Forsythe, but non-significant with Welch.

Also the Games-Howell post hoc shows no significant differences in any of the paired comparisons.

Kindly

Andrés

Mg. Andrés Burga León
Coordinador de Análisis e Informática
Unidad de Medición de la Calidad Educativa
Ministerio de Educación del Perú
Calle El Comercio s/n (espalda del Museo de la Nación)
Lima 41
Perú
Teléfono 615-5840