. Author manuscript; available in PMC: 2014 Jun 1.

Published in final edited form as: Psychol Aging. 2013 Feb 18;28(2):304–313. doi: 10.1037/a0031196

Table 3.

Longitudinal Relationship Between Specific Cognitive Functions and Purpose in Life

Cognitive Function	Correlation between Change in Cognition and Purpose			Cross Lagged Effects						Model Fit
	Correlation between Change in Cognition and Purpose			Cognition → Purpose			Purpose → Cognition			Model Fit
	Estimate	SE	p	Estimate	SE	p	Estimate	SE	p	RMSEA	SRMR	TLI	CFI
Episodic memory	0.291	0.107	0.007	0.027	0.015	0.065	0.023	0.004	<0.001	0.026	0.034	0.987	0.988
Semantic memory	0.228	0.109	0.037	0.038	0.016	0.016	0.017	0.003	<0.001	0.019	0.032	0.992	0.993
Working memory	0.197	0.108	0.068	0.028	0.012	0.016	0.014	0.004	0.002	0.017	0.034	0.993	0.994
Perceptual speed	0.280	0.099	0.005	0.043	0.013	0.001	0.015	0.004	<0.001	0.023	0.031	0.990	0.991

Note. Estimated from separate bivariate latent curve models with cross lagged components adjusted for age, sex, and education. The cross lagged effects indicate the result of a 1-unit shift in cognition (or purpose) on purpose (or cognition) one year later. N = 1,049. SE, standard error; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual; TLI, Tucker-Lewis index; CFI, comparative fit index.