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Kruskal-Wallis Test

Kruskal-Wallis Test This is a nonparametric test that a One-way ANOVA that can be used when there is more than two group means to compare.

Assumptions 1. All samples are random from their respective populations. 2. Three or more samples are independent of each other. 3. Levels of measurements are at least ordinal.

Conducting Kruskal-Wallis Test When analyzing data into SPSS, you will.. 1. First, click Analyze 2. Then, choose nonparametric tests 3. Next, choose Legacy Dialogs 4. Then, choose K- independent Samples-move the dependent variable into the Test variable into Grouping Variable 5. Kruskal-Wallis is checked by default under test type; if the OK button is not active, it's because groups have not been defined our groups. Type 1 for minimum and 3 for maximum. 6. Lastly, Run a descriptive statistic analysis.

Helpful Tutorial with APA example: https://www.youtube.com/watch?v=l86wEhUzkY4

SPSS

Reporting a Krustal-Wallis Test should include the size of the corresponding statistics, associated p-value, and medians of groups.

https://image.slideserve.com/792691/the-kruskal-wallis-h-test2-l.jpg

References

Kim, Myoungjin, Mallory, Caroline, & Valerio, Teresa, 2022. Statistics for Evidence-Based Practice in Nursing. 3rd Edition