Closeness feelings
aggression, prosocial behaviors
The Inclusion of the Other in the Self Scale (IOSS; Aron et al.Other measures were included in the design to either check for potential differences (compassion traits, emotion regulation skills, and prosociality) between conditions after the randomization or were used for exploratory purposes on the effects of the two emotion regulation interventions (negative attitudes, prosocial behaviors, and aggression behaviors). Due to their exploratory nature and because no specific hypotheses were formulated for these measures, details on these measures are provided in the 