Adolescent 37 Adolescent psychology 16 Dissertations 16 Dissertations, Academic 16 Adolescence 13 Psychological aspects 9 Self-esteem in adolescence 8 Obesity 7 Teenagers 6 Adolescent Behavior 5 High school students 5 Students 5 epidemiology 5 in adolescence 5 Identity (Psychology) in adolescence 4 Interpersonal relations in adolescence 4 Parent and teenager 4 Parenting 4 Pregnancy in Adolescence 4 Self-perception in adolescence 4 Stress in adolescence 4 statistics & numerical data 4 Adjustment (Psychology) in adolescence 3 Aggressiveness in adolescence 3 Attitudes 3 Body Mass Index 3 Body Weight 3 Creative thinking 3 Educational psychology 3 Mental Disorders 3