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Do locus of control beliefs change in later life? Is locus of control related to aging-relevant outcomes involving intelligence and health? In past research on these topics, the use of unidimensional and generalized measures of locus of control has led to a set of inconsistent findings. Three studies were conducted to examine the usefulness of multidimensional and domain-specific measures of locus of control for examining age differences and correlates. College students and elderly adults were compared on Levenson's multidimensional and generalized (internal, chance, and powerful others) locus of control scales and two domain-specific versions related to intelligence and health. As predicted, no age differences were found with generalized measures, but the elderly were more external on intelligence- and health-specific locus of control dimensions. Age differences were found most often on the chance and powerful others control dimensions, suggesting that the elderly acknowledge the importance of external sources of control and at the same time preserve their sense of internal control. In addition, the domain-specific scales were better predictors of behavioral outcomes within their respective domains for the elderly but not for the young. The findings suggest that multidimensional and domain-specific conceptions of control are advantageous for aging research.
Margie E. Lachman (Wed,) studied this question.