Open hyc970828 opened 4 months ago
There are a large number of subjects and items so high power is not unexpected here. Given the large sample size, I'm not surprised to see 100% power given the effect size.
If the confidence interval around LEIBIE1:CONDITION1
excludes zero by a large margin, then you already know there is enough power to reject a null effect, and a power analysis gives you very little additional information.
Hi all, I'm new to GitHub so apologies if my entry is not formatted correcting for you to help me appropriately. Happy to edit/add info if needed! My experiment was a 2×3 mixed experiment, with 2(LEIBIE) being the intra-subject variable and 3(CONDITION) being the inter-subject variable. The number of subjects is 120 in total, 40 in each group. Each subject was required to complete 72 items, for a total of 8,480 items. My model is:
and I tried:
This runs and gives me this output:
I'm thinking maybe it's because there are too many projects? Do I specify the number of subjects? But I didn't know what to do.