Cole, D A A longitudinal study of negative affect and self-perceived competence in young adolescents. [electronic resource] - Journal of personality and social psychology Oct 1999 - 851-62 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0022-3514 Standard No.: 10.1037//0022-3514.77.4.851 doi Subjects--Topical Terms: AdolescentAdolescent Behavior--psychologyAffect--physiologyChildDepression--psychologyFemaleFollow-Up StudiesHumansMalePsychology, AdolescentSelf ConceptSocial Desirability