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by ulf.isaksson@umu.se
Thu Apr 03, 2025 5:36 am
Forum: Module development
Topic: Incorrect effect-size value in paired t-test
Replies: 8
Views: 86941

Incorrect effect-size value in paired t-test

I have identified a potential error in the paired t-test; the effect size is calculated incorrectly. If you tick the effect-size box, you obtain a value that is too high because the standard deviation is not pooled as I have calculated it. To calculate a correct effect-size, you must use the esci mo...