Number of observations is < 2 after grouping
Hi all,
For my graduation research I want to perform an Anova in JASP for my dataset. However, I keep getting the error: "Number of observations is < 2 after grouping". I don't know what's going wrong. Can someone maybe help me? I've added the data file for completeness.
Thanks in advance!
With kind regards,
Joshua Seelen
Comments
I suspect it is the long vs wide format (just a guess).
Have you gone to the JASP Data Library and looked at the way we code other ANOVA analyses?
E.J.