Thank you for this.
If you did not generate your filler items using a Template but still used something like .log( “CQcorrect” , row.CQcorrect ) on your filler trial, then you got NAs because there is simply no row for row to point to.
^ so how to fix that?
This is basically the same problem: TextInput2 is only defined for trial #1, so you need to adapt the code to that. Also, you have two lines for TextInput2 for every participant, you only want to keep the second one, the one for which Parameter is Final.
^ I adapted the code and got an empty data frame!
Appreciate your help.