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Thomaes, Sander; Bushman, Brad J.; de Castro, Bram Orobio; Reijntjes, Albert – Developmental Psychology, 2012
When people reflect on their important values, they may become more attuned to the needs of others. Two longitudinal field experiments examined whether a subtle value-affirmation manipulation can initiate relatively enduring increases in young adolescents' prosocial feelings (Study 1; M [subscript age] = 12.9) and prosocial behaviors (Study 2; M…
Descriptors: Control Groups, Prosocial Behavior, Writing Exercises, Adolescents