Self-concept and altruism in old age.
D000223:Adaptation, Psychological; D000367:Age Factors; D000368:Aged; D000375:Aging; D001290:Attitude; D002641:Chicago; D003674:Defense Mechanisms; D004522:Educational Status; D005260:Female; D006801:Humans; D010552:Personality Assessment; D012649:Self Concept; D012917:Social Adjustment; D012919:Social Behavior; D012923:Social Class; D012959:Socioeconomic Factors