JASP newbie: pre-post with unequal number of observations
I have a study in which my 10 participants perform a task 90 times in each of two conditions. Being human, sometimes they make mistakes, so for a particular participant, I could have a different number of observations in each condition.
i believe this requires a linear mixed model, but I don’t know how to set it up in JASP. Given its wide data format, some rows will have empty values. (Edit: is there an easy long to wide converter?)
I’ll also need to account for each participant’s preferred speed in doing the task, which I think would mean a nuisance variable for participant.
Would greatly appreciate any pointers or suggestions!