Adult 4 Female 4 Humans 4 Male 4 Middle Aged 4 adult 4 female 4 human 4 male 4 middle aged psychology Adolescent 2 Child 2 Health Knowledge, Attitudes, Practice 2 Young Adult 2 adolescent 2 attitude to health 2 child 2 controlled study 2 major clinical study 2 open data 2 open materials 2 preregistered 2 young adult 2 Aged 1 Aggression 1 Article 1 Athletic Injuries 1 Awareness 1 Centers for Disease Control and Prevention (U.S.) 1