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Psychometric evaluation of the Shared Decision-Making Instrument--Revised
Jacqueline A Bartlett1, Jane A Peterson
1Children's Mercy Hospitals and Clinics, 2401 Gillham Road, Kansas City, MO 64108, USA. jbartlett@cmh.edu
Abstract:
The purpose of this study was to evaluate the psychometric properties of the Shared Decision-Making Inventory-Revised (SDMI-R) to measure four constructs (knowledge, attitudes, self-efficacy, and intent) theoretically defined as vital in discussing the human papillomavirus (HPV) disease and vaccine with clients. The SDMI-R was distributed to a sample (N = 1,525) of school nurses. Correlational matrixes denoted moderate to strong correlations, indicating adequate internal reliability. Reliability for the total instrument was satisfactory (α = .874) along with Attitude, Self-Efficacy and Intent subscales .828, .917, .891, respectively. Exploratory factor analysis revealed five components that explained 75.96% of the variance.
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