Reexamining adaptation and the set point model of happiness: Reactions to changes in marital status.

TLDR

Adaptation theory posits that individuals respond to events but quickly return to baseline levels of subjective well‑being. The study aimed to test whether marital transitions affect life satisfaction by analyzing a 15‑year longitudinal dataset of over 24,000 participants. Researchers examined how changes in marital status influence life satisfaction trajectories across the cohort. Results showed that while most individuals returned toward baseline after marital changes, significant individual variation existed, with some remaining far from baseline and others moving opposite to adaptation predictions, indicating that marital transitions can produce lasting changes in satisfaction that average trends may overlook.

Abstract

According to adaptation theory, individuals react to events but quickly adapt back to baseline levels of subjective well-being. To test this idea, the authors used data from a 15-year longitudinal study of over 24.000 individuals to examine the effects of marital transitions on life satisfaction. On average, individuals reacted to events and then adapted back toward baseline levels. However, there were substantial individual differences in this tendency. Individuals who initially reacted strongly were still far from baseline years later, and many people exhibited trajectories that were in the opposite direction to that predicted by adaptation theory. Thus, marital transitions can be associated with long-lasting changes in satisfaction, but these changes can be overlooked when only average trends are examined.