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Friends know you: Peer nomination of self-control predict changes in academic achievement and friendship among
Daeun Park1, Eli Tsukayama2, Brian M Galla3
1Department of Psychology, Sungkyunkwan University, Jongno-gu, Korea.
Introduction:
Self-control predicts academic achievement and social outcomes in adolescents. Despite the increased role of peers in the lives of adolescents, little is known about whether peers' views of an individual's self-control have predictive validity for academic and social outcomes.
Method:
In a longitudinal study involving over 1500 adolescents (Mage = 13.74), we examined whether peer nomination of self-control provides incremental predictive validity over and above self-reports for rank-order changes in academic achievement and friendship (i.e., the total number of nominations received as a best friend). To do so, we followed 8th graders through the 9th grade, measuring self-reported self-control (academic vs. social), peer-nominated self-control (academic vs. social), grade point average, and friendship.
Results:
Peer-nominated academic self-control predicted rank-order changes in grade point average and peer-nominated interpersonal self-control predicted rank-order changes in friendship over and above self-reported academic and interpersonal self-control.
Conclusion:
Our findings demonstrate the predictive utility of peer nominations in research on self-control.
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