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Change in self-efficacy, autonomous and controlled motivation predicting smoking
Ana-Paula Cupertino1, Carla Berg, Byron Gajewski
1University of Kansas Medical Center, Kansas City, KS 66160, USA. acupertino@kumc.edu
Journal of Health Psychology
|November 15, 2011
Summary
Motivational interviewing (MI) shows mixed results for smoking cessation. While MI counseling aided behavior change over 12 months, it did not directly impact motivation or self-efficacy, though increased self-efficacy was linked to quitting.
Area of Science:
- Behavioral Science
- Addiction Research
- Health Psychology
Background:
- Motivational interviewing (MI) is recognized for influencing health behaviors.
- However, its efficacy in smoking cessation interventions has yielded inconsistent findings.
- Understanding the mediating factors in MI's effect on smoking cessation is crucial.
Purpose of the Study:
- To investigate the mediating roles of autonomous motivation, controlled motivation, and self-efficacy in the relationship between MI and smoking cessation.
- To analyze secondary data from a randomized trial of MI for smoking cessation.
Main Methods:
- Secondary analysis of data from a randomized controlled trial (RCT) involving motivational interviewing for smoking cessation.
- Assessment of changes in smoking behaviors, autonomous motivation, controlled motivation, and self-efficacy over a 12-month period.
Main Results:
- MI counseling was associated with changes in smoking behaviors throughout the 12-month intervention.
- No significant association was found between MI and autonomous motivation, controlled motivation, or self-efficacy at baseline and 6 months.
- The study identified an increase in self-efficacy as a confirmed pathway to successful smoking cessation.
Conclusions:
- Motivational interviewing may influence smoking cessation behaviors indirectly.
- The hypothesized mediating roles of motivation and self-efficacy were not fully supported at the 6-month mark.
- Increased self-efficacy emerged as a key factor facilitating smoking cessation in this MI-based trial.
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