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Self-efficacy and marijuana cessation: a construct validity analysis

R S Stephens1, J S Wertz, R A Roffman

  • 1Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg 24061-0436, USA.

Journal of Consulting and Clinical Psychology
|December 1, 1995
PubMed
Summary
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Self-efficacy for avoiding marijuana use improved after treatment, particularly with cognitive-behavioral relapse prevention. This enhanced self-efficacy predicted posttreatment marijuana use frequency.

Area of Science:

  • Psychology
  • Addiction Medicine
  • Behavioral Science

Background:

  • Self-efficacy is crucial for substance use cessation.
  • Understanding factors influencing self-efficacy in marijuana cessation is vital for treatment development.

Purpose of the Study:

  • To examine the relationships between self-efficacy for avoiding marijuana use and related measures.
  • To assess the impact of treatment on self-efficacy and its predictive validity for marijuana use outcomes.

Main Methods:

  • 161 men and 51 women seeking marijuana cessation treatment were studied.
  • Self-efficacy and theoretically related measures were assessed before and after treatment.
  • Cognitive-behavioral relapse prevention and nonbehavioral treatments were compared.

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Main Results:

  • Sources of efficacy judgments showed stronger relationships with self-efficacy posttreatment.
  • Cognitive-behavioral treatment led to marginally greater self-efficacy compared to nonbehavioral treatment.
  • Self-efficacy incrementally predicted posttreatment marijuana use frequency, more so than abstinence status.

Conclusions:

  • Treatment, especially cognitive-behavioral approaches, can enhance self-efficacy for marijuana cessation.
  • Self-efficacy is a significant predictor of posttreatment marijuana use.
  • Further research is needed to refine self-efficacy assessment and theory in substance use contexts.