Objectives: Adolescents endeavor to meet their social needs, to be accepted and to develop close friendship relationships. However, quality and close relationships may not always be possible. Identity development may be affected if adolescents cannot be included in social groups and cannot establish quality friendship relationships. This can be…

The understanding of positive development across adolescence rests on having a valid and equivalent measure of this construct across the breadth of this period of life. Does the Positive Youth Development (PYD) construct based on the Five Cs model have satisfactory psychometric properties for such longitudinal measurement invariance? Using…