Humans human 147 student Students 115 female 113 male 109 Female 99 Male 95 adult 80 psychology 63 Adolescent 61 adolescent 61 article 58 young adult 58 Young Adult 56 Adult 51 human experiment 45 controlled study 44 major clinical study 43 university 40 Universities 37 questionnaire 32 Article 29 Surveys and Questionnaires 26 education 26 child 23 procedures 23 learning 20 United States 19 Child 18