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LucyB
Obsidian | Level 7

Due to problems with non-normal residuals, I have run a rank-based ANOVA on my outcome variable (continuous). My indepedent variable is binary (Yes/No). I have 1 continous covariate in the model.

 

When I look at median values for each group - they are quite different (10 vs. 97) - this is a score outcome. IQR is quite large as well.

 

When I run my rank based ANOVA - the p value for the group is highly insignificant- both in the crude and adjusted models. How is this possible? The medians are so different.

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What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

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