"If I had it to do over again...": midlife review, midcourse corrections, and women's well-being in midlife.

Regrets about early adult life choices, expressed in midlife, are examined as a source of motivation for life changes in later midlife in 2 samples of women. Replicated findings with longitudinal data indicate that regret motivates goal setting but is not associated with actually making desired life changes. In both samples, women who had regrets about early adult life choices but did not make relevant life changes were lower in later well-being than both women with regrets who did make such changes and women without regrets. Compared with women who transformed regrets into life changes, women who did not were lower in effective instrumentality and higher in rumination, though they did not appear to face more barriers to change. Analyses with longitudinal data indicated that both rumination and effective instrumentality mediated the relationship between regret and well-being for women who did not translate regret into life changes.