Measures of Self-Care in Heart Failure: Issues with Factorial Structure and Reliability
Circulatory and Respiratory Physiology
Medicine and Health Sciences
Dear Editor We read with great interest the recently published paper by Dr Lambrinou and colleagues1 entitled “The Greek version of the 9-item European heart failure self-care behaviour scale: A multidimensional or an uni-dimensional scale?” The paper is one of several papers published on the psychometric properties of the European Heart Failure Self-care Behaviour Scale (EHFScBS) and continues to raise the important questions: (1) Is self-care of heart failure (HF) a multidimensional or an uni-dimensional construct? (2) Is self-care of HF a generalizable construct across countries? (3) Is Cronbach's alpha the best approach to estimate reliability of instruments?