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    Development and Validation of a Scale to Measure Fear of Activity in Patients With Coronary Artery Disease (Fact-CAD)
    (W B Saunders Co-Elsevier Inc, 2020) Özyemişci Taşkıran, Özden; Demirsoy, Nesrin; Atan, Tuğba; Yüksel, Selcen; Coşkun, Özlem; Kurtaiş Aytur, Yeşim; Topal, Salih
    Objective: To develop and validate a scale to measure fear of activity in patients with coronary artery disease. Design: Psychometric study. Setting: Outpatient cardiology clinics. Participants: The scale was applied to patients who had myocardial infarction, coronary artery bypass grafting, or percutaneous coronary intervention within the last 12 months (N=250). Interventions: A scale for fear of activity in patients with coronary artery disease (Fact-CAD) was created through semistructured focus group interviews with patients. Face and content validity of Fact-CAD was verified. Main Outcome Measures: Psychometric analysis included model fit, unidimensionality, reliability, local dependency, differential item functioning, and external construct validity. Analyses were performed using the Rasch Analysis Model. Results: Fact-CAD scale was a reliable (high Person Separation Index of 0.89) and valid (unidimensional, no misfit, local independency supported, no residual correlations) measure of fear of activity. Three items showed differential item functioning according to employment status, marital status, and angina pectoris, which were not assigned as real item bias by experts and remained in the model. Conclusion: Fact-CAD was supported by Rasch analysis as a psychometrically valid scale to evaluate fear of activity in patients with coronary artery disease. (C) 2019 by the American Congress of Rehabilitation Medicine