I use event-related design in my study. there are totally four conditions
and eight sessions in my experiment. In each session, there is just one
condition. So each condition appears in two sessions in the whole
experiment. When I am doing the analysis, after I click on the design, I
input 4 as the number of conditions and then input the vectors of them. The
program requires me to input the vectors of every condition, but there is
only one condition in each session. I could input nothing for the other
conditions. Then I can't do the analysis. How can I deal with that. Thanks.
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