Subjects (N=970) in five stages of smoking cessation completed test measuring 10 change processes: consciousness raising, dramatic relief, self-liberation, social liberation, counterconditioning, stimulus control, self-reevaluation, environmental reevaluation, reinforcement management, and helping relationship. Assessed 770 subjects six months later. Analysis confirmed 10-process model and revealed two secondary factors consisting of five processes each. (Author/NB)