Baydar, NazlıAral, Tuğçe2024-11-092019https://hdl.handle.net/20.500.14288/510766 leaves : tables ; 30 cm.restrictedAccessYouth developmentTeenagersYouthTeenagers, GrowthAdolescent psychologyAdolescenceAdolescent psychologyYouth, PsychologyEffectiveness of a positive youth development intervention for early adolescents with high socieconomic status in private schoolsThesis© All Rights Reserved. Accessible to Koç University Affiliated Users Only!