Preliminary tests of normality when comparing three independent samples
Artikel i vetenskaplig tidskrift, 2016

This paper uses simulation to explore the performance of a two-stage procedure where a preliminary Shapiro–Wilk test is used to choose between ANOVA and the Kruskal–Wallis test as three-sample location test. The results suggest that the two-stage procedure actually seems to be preferable when conducting such location tests.

preliminary tests

Shapiro-Wilk

Kruskal-Wallis

assumptions

Normality

ANOVA

Författare

Björn Lantz

Chalmers, Teknikens ekonomi och organisation, Innovation and R&D Management

Roy Andersson

Tekniska högskolan i Jönköping

Peter Manfredsson

Högskolan i Borås

Journal of Modern Applied Statistical Methods

1538-9472 (ISSN)

Vol. 15 2 135-148

Ämneskategorier

Sannolikhetsteori och statistik

DOI

10.22237/jmasm/1478002140