When helping hurts: effects of donor-recipient similarity and recipient self-esteem on reactions to aid.
D001290:Attitude; D006379:Helping Behavior; D006801:Humans; D007389:Internal-External Control; D007398:Interpersonal Relations; D008297:Male; D010551:Personality; D012649:Self Concept; D012919:Social Behavior; D012938:Social Perception