Experiment 3. Proportion of coincidence of highest hedonic rating in Questionnaire 3.a with behavioral choice of wrong solutions in Questionnaire 3.b, plotted against the number of correct choices, i.e. mathematical proficiency. Each dot is the result obtained for a given subject. For the group: Y = 0.011X + 0.21, F = 5.9, r = 0.61, p = 0.035.