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A cognitive dissonance-based mobile app intervention for smoking cessation: A single-arm pilot trial
Dana K Smith1,2, Herbert H Severson1,2, Vani N Simmons3,4
1Oregon Research InstituteSpringfieldUnited States.
Tobacco Prevention & Cessation
|August 11, 2026
Summary
This pilot study shows a mobile app effectively increased cognitive dissonance and readiness to quit smoking. The Support2Quit app helped reduce daily cigarette consumption for most participants.
Area of Science:
- Public Health
- Behavioral Science
- Digital Health
Background:
- Despite declining rates, 38 million Americans still smoke, facing severe health risks.
- Current smoking cessation interventions show limited improvement in success rates.
- Novel, theory-driven approaches are needed to enhance quit rates and engagement.
Purpose of the Study:
- To evaluate a mobile app delivering a cognitive dissonance intervention for smoking cessation.
- To assess the feasibility, usability, and participant satisfaction of the Support2Quit app.
- To determine the intervention's effectiveness in increasing cognitive dissonance and readiness to quit.
Main Methods:
- A single-arm pilot study involving 72 adult daily smokers.
- Assessment at baseline, 1 month, and 3 months.
- Evaluation of feasibility, usability, satisfaction, and smoking cessation outcomes.
Main Results:
- The app significantly increased cognitive dissonance (r=0.55) and readiness to quit (r=0.36).
- 72% of participants reduced daily cigarette smoking.
- High user satisfaction reported, with 82.5% finding the app helpful for cessation.
Conclusions:
- The Support2Quit mobile app effectively induced cognitive dissonance.
- The app shows promise as a tool for reducing or quitting cigarette use.
- Mobile health interventions can be a valuable addition to smoking cessation strategies.
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