Sense of purpose refers to the extent to which one feels that they have personally meaningful goals and directions guiding them through life. Though this construct predicts a host of benefits, little is known regarding the extent to which sense of purpose fluctuates within an individual and the affective changes tied to those fluctuations. The current study uses daily diary data to addresses this gap by exploring (1) how much sense of purpose and different components of purpose fluctuate from one day to the next, (2) the extent to which these fluctuations correlate with positive and negative affect, and (3) whether dispositional sense of purpose and age correlate with greater variability. Participants (N = 354) reported on their sense of purpose and positive and negative affect every day for 10 days. Results suggest that approximately 45-61% of the variability in sense of purpose scores occurs between-person depending on how it is assessed. Furthermore, the within-person variability in sense of purpose is more strongly correlated with changes in positive affect relative to negative affect. Finally, higher levels of dispositional sense of purpose and age do not appear to be associated with how much variability an individual experiences in their purposefulness from one day to next. The discussion focuses on what these findings mean for the trait-like nature of sense of purpose, short-term sense of purpose measurement, lifespan development, and intervention efforts.
Keywords: daily diary; negative affect; positive affect; sense of purpose; variability.