The study examined the relative influence of 2 forms of task cohesion on older adult exercisers’ (N = 82) self-efficacy to schedule exercise into their weekly routine. Participants had been involved with the exercise program for at least 4 months before the study began. A sequencing protocol was used to allow for task cohesion’s influence on scheduling self-efficacy. Task cohesion, as measured by the Group Environment Questionnaire, was assessed during the 1st week of exercise classes after a holiday. Scheduling self-efficacy was assessed at midprogram. Attractions to the group-task and group-integration-task cohesion were sequentially entered into a hierarchical regression analysis while recent attendance was controlled for. Results showed individual attractions to the group task accounted for most of the variance in scheduling self-efficacy. R² = .10, F(2,80) = 4.22,p = .02; the addition of group-integration task also significantly (p < .05) added variance. R² = .13. F(3, 79) = 3.79, p = .01.