Development, pilot testing and psychometric validation of a short version of the coronary artery disease education questionnaire: The CADE-Q SV

• CADE-Q SV is a short and quick tool, ideal for clinical practice.
• It was designed specifically to assess patients’ knowledge in CR.
• It has strong psychometric properties, providing evidence of its reliability and validity.

ObjectiveTo develop, pilot test and psychometrically validate a shorter version of the coronary artery disease education questionnaire (CADE-Q), called CADE-Q SV.MethodsBased on previous versions of the CADE-Q, cardiac rehabilitation (CR) experts developed 20 items divided into 5 knowledge domains to comprise the first version of the CADE-Q SV. To establish content validity, they were reviewed by an expert panel (N = 12). Refined items were pilot-tested in 20 patients, in which clarity was provided. A final version was generated and psychometrically-tested in 132CR patients. Test-retest reliability was assessed via the intraclass correlation coefficient (ICC), the internal consistency using Cronbach’s alpha, and criterion validity with regard to patients’ education and duration in CR.ResultsAll ICC coefficients meet the minimum recommended standard. All domains were considered internally consistent (α > 0.7). Criterion validity was supported by significant differences in mean scores by educational level (p < 0.01) and duration in CR (p < 0.05). Knowledge about exercise and nutrition was higher than knowledge about medical condition.ConclusionThe CADE-Q SV was demonstrated to have good reliability and validity.Practice ImplicationsThis is a short, quick and appropriate tool for application in clinical and research settings, assessing patients’ knowledge during CR and as part of education programming.