Validity of the Control Preferences Scale in patients with emotional disorders
Authors De las Cuevas C, Peñate W
Received 14 September 2016
Accepted for publication 22 October 2016
Published 15 November 2016 Volume 2016:10 Pages 2351—2356
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Amy Norman
Peer reviewer comments 2
Editor who approved publication: Dr Johnny Chen
Carlos De las Cuevas,1 Wenceslao Peñate2
1Department of Internal Medicine, Dermatology and Psychiatry, 2Department of Personality, Assessment and Psychological Treatments, University of La Laguna, San Cristóbal de La Laguna, Canary Islands, Spain
Background: The Control Preferences Scale (CPS) is the most frequently used measure of patients’ preferred roles in treatment decisions. The aim of this study was to provide data about the validity of CPS in psychiatric care of patients with emotional disorders.
Methods: The original CPS was translated to Spanish using the process of cross-cultural adaptation of self-reported measures as the methodological model for Spanish translation. The final version was tested in a convenience sample of 621 consecutive psychiatric outpatients (461 depressive and 160 anxiety disorders) that also completed the Shared Decision-Making Questionnaire, the Multidimensional Health Locus of Control Scale, the Drug Attitude Inventory, and a questionnaire including sociodemographic and clinical variables.
Results: CPS showed a moderate internal consistency and a good convergent validity. Patients with collaborative and passive preferences expressed a greater reliance on psychotropics. Patients preferring a collaborative role self-reported greater perception of involvement in decision-making about their treatment. Patients preferring a passive role showed a greater external health locus of control. The most common preferred role was the collaborative–passive. Older patients and those under longer treatments preferred a passive role, while patients with higher levels of education preferred a collaborative role.
Conclusion: The CPS is a valid measure of the amount of control that psychiatric outpatients with emotional disorders want to assume in the process of making decisions about their treatment.
Keywords: Control Preferences Scale, psychiatric outpatients, emotional disorders, psychometric properties
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