Working memory capacity is an important psychological construct, and many real-world phenomena are strongly associated with individual differences in working memory functioning. Evidence-based therapies can be augmented to target LS and cognition. DISCUSSION: LS and verbal WM and processing speed predicted one another across long durations. However, change in spatial cognition did not predict change in LS (|d| = 0.085). Additionally, depletion in processing speed and verbal WM predicted future decrease in LS (d = 0.142–0.269). RESULTS: Reduction in life satisfaction predicted future decreases in spatial cognition, processing speed, and verbal WM (|d| = 0.150–0.354). Five waves of assessment occurred across 23 years. METHOD: Community adults completed in-person tests of verbal working memory (WM), processing speed, and spatial cognition, and an LS self-report. Thus, we used bivariate dual latent change score modeling to test within-person change-to-future change relations between LS and cognition. However, most studies have been crosssectional, thereby precluding causal inferences. BACKGROUND: Within-person growth in life satisfaction (LS) can protect against declines in cognitive functioning, and conversely, over time.
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