Subjective change and mental health: A self-concept theory

This study investigates the consequences of perceived improvements and perceived declines in life domain functioning. Self-concept theory suggests that perceived improvement should increase both negative and positive mental health because it violates the self-consistency standard but satisfies the self-enhancement standard. Because perceived decline violates both self-consistency and self-enhancement standards; it should strongly increase negative mental health and decrease positive mental health (the "double-dose effect"). These hypotheses were tested with data from a national probability sample and telephone interview with adults who evaluated change in functioning in six domains of life. More perceived improvement predicted increases in both negative and positive mental health. More perceived decline predicted increases in negative mental health and decreases in positive mental health. Perceived decline exhibited a double-dose effect on mental health. Findings suggest that subjective change produces complex mental health profiles because it is understood through multiple self-standards and is experienced through distinct reactive channels.