article child female 9 human 9 major clinical study 7 male 7 controlled study 5 human experiment 5 adolescent 4 Humans 3 girl 3 student 3 Adolescent 2 Adolescent Behavior 2 Female 2 Male 2 Reliability 2 Schools 2 Students 2 adolescent behavior 2 confirmatory factor analysis 2 education 2 gender 2 high school student 2 primary school 2 psychology 2 questionnaire 2 school 2 school child 2 Adolescents 1