This study is intended to administer stress scale, psychological well-being scale and self-efficacy scale in 279 baby boomers who were born from 1955 to 1963 residing in the P and U areas.

Pearson’s simple correlation analysis was performed to identify the relationship between life stress, psychological well-being and self-efficacy, while hierarchical regression was used according to the procedure suggested by Baron & Kenny (1986) to figure out how self-efficacy mediates the effect of life stress on psychological well-being.

First, life stress in baby boomers has a significantly negative effect on psychological well-being and self-efficacy; second, it was confirmed that self-efficacy has a partial effect in the relationship between life stress including family, economics, health and psychological well-being.

We discussed the implications and limitations of this study and whether interventions are required to improve the psychological well-being of baby boomers.