Perceived Age Discrimination has Different Effects on Japanese People's Wellbeing Based on Age Groups.

This study elucidates the direct and indirect effects of perceived age discrimination on depressive symptoms and life satisfaction among young, middle-aged, and older adults-through the mediator variables of psychosocial resources and aging stereotypes. Data were collected through a web-based survey conducted in Japan. The total sample size was 2400: 400 men and women in each of the age groups 20 to 39, 40 to 59, and 60 to 79. Our findings indicate that perceived age discrimination is linked depressive symptoms, even among young adults, who report more age discrimination than older adults. Its effect on life satisfaction, however, is stronger among older adults. Across age groups, most of its effect on life satisfaction was explained by both psychosocial resources and aging stereotypes. By contrast, its effect on depressive symptoms did not differ significantly by age group, and was partly explained by the mediators. These differing results may be attributable to selection bias in the web survey.