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Development of self-efficacy and expectancy measures for benzodiazepines
Addictive Behaviours, 06/25/09

Parr JM et al. - The scales provide reliable measures for assessing benzodiazepine self-efficacy and expectancies. Future research will examine the utility of the scales in prospective prediction of benzodiazepine cessation.

Methods

Internal structure of the questionnaires was established by principal component analysis (PCA) in a sample of 155 respondents, and verified by confirmatory factor analyses (CFA) in a second independent sample (n = 139) using structural equation modeling.

Results

The PCA of the BRSEQ resulted in a 16-item, 4-factor scale, and the BEQ formed an 18-item, 2-factor scale.
Both scales were internally reliable.
Lower self-efficacy and higher expectancy were moderately associated with higher scores on the SDS-B.

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