Hi Alfonso, 

I am curious, what statistical test is being computed for the setup you described (select 'AllSubjects' and 'BehavioralScores' and enter a [0 1] between-subjects contrast). When I plot the effects, it reports t-statistics and plots an effect size bar graph.  This makes me wonder whether this is really computing a correlation between the behavioral scores and the ICC values across subjects or whether I am potentially not setting this up correctly. 

Thanks! 

Best, 
Leah