Related Experiment Video
Updated: Aug 29, 2026
Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
Published on: October 22, 2020
Size, consistency, and stability of stage effects for smoking cessation
James O Prochaska1, Wayne F Velicer, Janice M Prochaska
1University of Rhode Island, 2 Chafee Road, Kingston, RI 02881, USA. jop@uri.edu
Abstract:
In the transtheoretical model (TTM), the stage effect is one of the most important determinants of health behavior change. Randomly assigned to 1 of 11 treatment conditions were 4653 smokers. A total of 66 stage effects were possible with 6 for each of the 11 treatment groups. The results suggest that brief stage-matched interventions that help populations progress one stage could produce 75% more abstinence. Interventions that help populations progress two stages could produce 300% more abstinence. The results also support the importance of replicating the stage effects across treatment conditions and over time.
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