Preferences are the expression of an individual's basic psychosocial needs and are related to care outcomes. The current study tested the consistency of 87 individuals' everyday preferences over 1 week, comparing responses of nursing home residents (n = 37; mean age = 82) and university students (n = 50; mean age = 20). Participants completed the Preferences for Everyday Living Inventory at baseline and 5 to 7 days later. Preference consistency was calculated three ways: (a) correlations (range = 0.11 to 0.90); (b) overall percent of exact agreement (e.g., response was "very important" at both time points) (66.1%); and (c) responses collapsed as "important" or "not important" (increase in percent agreement to 86.6%). Personal care preferences were more stable, whereas leisure activities were less stable. The groups did not have significant differences in consistency. Some preferences are more consistent than others; age and frailty do not appear to be related to preference instability.