giving Adolescent 1 Adult 1 Child 1 Double-Blind Method 1 Educational Status 1 Female 1 Goals 1 Humans 1 Male 1 Middle Aged 1 Motivation 1 Power (Psychology) 1 Schools 1 Students 1 Young Adult 1 adolescent 1 adult 1 advice 1 behavior 1 child 1 controlled study 1 cortisol 1 dictator game 1 double blind procedure 1 educational status 1 empathy 1 female 1 generosity 1 goal achievement 1