This paper describes the comparison of the anova and the KruskalWallis test by means of the power when violating the assumption about normally distributed populations. The permutation method is used as a simulation method to determine the power of the test. It appears that in the case of asymmetric populations the non-parametric Kruskal-Wallis test performs better than the parametric equivalent...

Materials and Methods: A total of 1,422 subjects, 704 women (49.5%) and 718 men (50.5%), were enrolled in the Maracaibo City Metabolic Syndrome Prevalence Study. The results were expressed as medians and inter-quartile ranges (p25-p75). Differences were determined through the Mann-Whitney U test and one-way ANOVA test with the Bonferroni adjustment. A multiple logistic regression model was desi...

Analysis of variance (ANOVA) is the most efficient method available for the analysis of experimental data. Analysis of variance is a method of considerable complexity and subtlety, with many different variations, each of which applies in a particular experimental context. Hence, it is possible to apply the wrong type of ANOVA to data and, therefore, to draw an erroneous conclusion from an exper...

this study investigated the relationship between language learning aptitude (lla) and the use of language learning strategies (llss) among a cohort of iranian efl students at urmia university, iran. the adapted versions of the modern language aptitude test (mlat; carrol & sapon, 1983) and oxford’s (1990) strategy inventory for language learning (sill) were distributed among the participants...