KRUSKAL-WALLIS TEST - BASIC COMPUTER-PROGRAM TO PERFORM NONPARAMETRIC ONE-WAY ANALYSIS OF VARIANCE AND MULTIPLE COMPARISONS ON RANKS OF SEVERAL INDEPENDENT SAMPLES

Multiple t tests at a fixed p level are frequently used to analyse biomedical data where analysis of variance followed by multiple comparisons or the adjustment of the p values according to Bonferroni would be more appropriate. The Kruskal-Wallis test is a nonparametric 'analysis of variance' which may be used to compare several independent samples. The present program is written in an elementary subset of BASIC and will perform Kruskall-Wallis test followed by multiple comparisons between the groups on practically any computer programmable in BASIC.