The present study examined (1) the role of self-efficacy, motivation a
nd stress in subgoal setting and achievement in a smoking cessation pr
ogram; (2) these variables along with subgoal setting and achievement
in predicting abstinence; and (3) the type of subgoal achieved (direct
or indirect) and its relationship to abstinence. A consistent negativ
e relationship between self-efficacy and current subgoal setting was f
ound for abstainers. However, in prospective analyses, prior subgoal s
etting was the primary predictor of subsequent subgoal setting. Self-e
fficacy and prior subgoal achievement were the most significant, posit
ive predictors of subgoal achievement over time. Level of self-efficac
y during treatment was the only significant variable to emerge in the
prediction of followup abstinence after accounting for prior smoking s
tatus, and appears to mediate the effect of subgoal achievement on out
come. Abstainers and smokers at followup differed in their proportions
of indirect subgoals achieved.