Means, standard deviations and correlations (i.e., Correlations between level-1 variables (i.e., emotions and intrinsic motivation) were computed on group-mean centered data, while correlations that involved level-2 variables (i.e., emotion differentiation), were computed on data that were aggregated to the person-level).

<p>Means, standard deviations and correlations (i.e., Correlations between level-1 variables (i.e., emotions and intrinsic motivation) were computed on group-mean centered data, while correlations that involved level-2 variables (i.e., emotion differentiation), were computed on data that were aggregated to the person-level).