Female Humans 284 child female 284 human 284 male Male 279 Child 251 psychology 245 adolescent 163 Adolescent 156 adult 125 preschool child 112 Child, Preschool 108 child parent relation 108 Adult 106 controlled study 96 Article 90 major clinical study 86 physiology 74 article 66 Parents 65 longitudinal study 57 questionnaire 57 young adult 57 Young Adult 55 Parenting 51 Longitudinal Studies 50 Surveys and Questionnaires 48 mother 48