Unit 5 · Categories and non-parametrics

How to run a Kruskal-Wallis test in SPSS

Run a Kruskal-Wallis H test in SPSS with Bonferroni-corrected follow-up tests.

Pro lessonAbout 5 minutes7 practice questions

Kruskal-Wallis H

The nonparametric version of one-way ANOVA. Use it for three or more independent groups when your data are ordinal or not normal.

Tests for Several Independent Samples

Variables

Participant ID [id]

Age in years [age]

▶

Test Variable List:1

Stress rating [stress]

▶

Grouping Variable:

year(1 3)

Define Range…2

Exact…Options…

✓Kruskal-Wallis H3

Median

Jonckheere-Terpstra

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1
Test Variable ListThe outcome, such as a stress rating from 1 to 10.
2
Define Range…Enter the lowest and highest group codes: Minimum 1, Maximum 3.
3
Kruskal-Wallis HTicked by default. Found under Legacy Dialogs › K Independent Samples.

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