Psychometric Evaluation of the Turkish Version of Control Attitudes Scale-Revised for Heart Diseases

Objective: Perceived control is an issue that needs to be addressed in patient groups with chronic diseases where self-management is important. Patients with a high perception of control have a high success rate in chronic disease symptom management and disease adaptation.
Method: This study is a methodological adaptation designed to investigate the psychometric properties of the Control Attitudes Scale-Revised in Turkish patients with heart failure. In the reliability tests of the scale, Cronbach's alpha was used to determine internal consistency, and item homogeneity was assessed using item-total and item-item correlations. In the validity tests of the scale, confirmatory factor analysis and hypothesis testing for known relationships, discriminant validity, and test-retest reliability were used.
Results: The Turkish Control Attitudes Scale-Revised confirmatory factor analysis (CFA) test resulted in supportive fit indices for the original CAS-R's single-factor structure (p<0.001 for all items). The Cronbach's alpha reliability coefficient of the TCAS-R scale was found to be 0.99. In the hypothesis test used for construct validity, a positive moderate relationship of r=0.568 (p<0.05) was found between the Revised Turkish version of the Control Attitudes Scale and the nine-item European Heart Failure Self-Care Scale.
Conclusions: Based on these results, it can be concluded that the Revised Turkish Control Attitudes Scale is an appropriate and reliable tool for use with Turkish patients.The findings are expected to be useful for both healthcare professionals and patients.

Keywords: Control attidues, heart failure, psychometric, reliability, validity