Longitudinal Relations Between Depressive Symptoms and Life Satisfaction Over 15 Years

The longitudinal relationships between depressive symptoms and life satisfaction were examined using the random intercept cross-lagged panel model. This model allows the study of the relationship between the two variables both at the within-person and between-person levels. Data were obtained from the German Ageing Survey (DEAS). Analyses were conducted at lags of 3 (N = 8,492) and 6 years (N = 4,878), with data collected over a period of approximately 15 years. At the within-person level, the bidirectional associations between the two variables were significant in the 3-year lag analysis, whereas in the 6-year lag analysis, only life satisfaction predicted future depressive symptoms. An implication is that dissatisfaction with life may signal the possibility of developing depressive symptoms in the future. Increasing life satisfaction may act as a preventive measure against future depressive symptoms. Depressive symptoms may also be an indicator of future deterioration in subjective well-being.