Preferences for choice across adulthood: age trajectories and potential mechanisms.

Across a variety of decision domains, older adults were found to desire fewer choice options than younger adults, but the age trajectory and underlying mechanisms of these effects remain unknown. The present study examined the pattern and correlates of age differences in choice set size preferences using self-report and behavioral measures. Self-reported choice set size preferences were assessed in a large-scale survey using an adult life span sample (N = 318, ages 18-90 years). A subset of younger and older adults (n = 109) also completed behavioral measures of choice preferences and information seeking. Based on prior research and theorizing on aging and decision making, we tested for a variety of possible covariates, including maximizing and decision-making self-efficacy. Combined results indicated that the age trend of choice set size preferences is linear, gradual, and domain-general. Findings also indicated a significant association between choice preferences and the extent of predecisional information search. Although age differences were evident in both self-report and behavioral measures, they were not explained by any of the covariates tested. We discuss the implications of these findings for research on aging and decision making, as well as public policy.