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Development of self-efficacy and expectancy measures for benzodiazepines
Jannette M Parr1, David J Kavanagh, Ross McD Young
1The University of Queensland, School of Medicine, Australia.
Addictive Behaviors
|June 2, 2009
Summary
This study developed reliable self-efficacy and expectancy questionnaires for benzodiazepine use. Lower self-efficacy and higher expectancy correlated with increased benzodiazepine use.
Area of Science:
- Psychology
- Pharmacology
- Clinical Research
Background:
- Benzodiazepine dependence is a significant clinical issue.
- Accurate measurement of self-efficacy and expectancies is crucial for treatment.
- Existing measures may not adequately capture these constructs.
Purpose of the Study:
- To develop and validate the Benzodiazepine Refusal Self-Efficacy Questionnaire (BRSEQ).
- To develop and validate the Benzodiazepine Expectancy Questionnaire (BEQ).
- To assess the reliability and validity of these new self-report measures.
Main Methods:
- Principal Component Analysis (PCA) for initial scale development.
- Confirmatory Factor Analyses (CFA) using structural equation modeling for validation.
- Assessment of internal reliability and construct validity.
Main Results:
- PCA yielded a 16-item, 4-factor BRSEQ and an 18-item, 2-factor BEQ.
- CFA confirmed the factor structures, resulting in a 14-item BRSEQ and a 12-item BEQ.
- Lower self-efficacy and higher expectancy were associated with higher SDS-B scores.
Conclusions:
- The BRSEQ and BEQ are reliable and valid instruments for measuring benzodiazepine-related self-efficacy and expectancies.
- These scales can aid in understanding factors influencing benzodiazepine use.
- Future research should explore their predictive utility in benzodiazepine cessation efforts.
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