Development and validation of cardiac patient competence questionnaire, Iranian version

Background: the aim was to translate and develop a patient competence (pc) questionnairein the context of cardiology and test its validity and reliability.methods: in total, 148 cardiac patients who have inclusion criteria of the study were completedcardiac pc (cpc) questionnaire. hospital anxiety and depression scale and self-administeredinstrument european quality of life 5-dimensions were used to further validate the cpcquestionnaire. the cpc was translated according to the recommended methodology fortranslating questionnaires, and psychometric properties including internal consistency, factoranalysis, discriminant validity, construct validity, and concurrent criterion validity were tested.results: five domains in problem-focused task including search for information, selfregulation,being assertive, independent decision-making, and looking for social services, andthree domains in emotion-focused task including stress management, confronting the threat,and avoidance were obtained by factor analysis. the standardized cronbach’s ? of all domainswere statistically significant (p < 0.001) and internal consistency for all domains was acceptable.significant intercorrelations of cpc domains also indicated good criterion validity. as therewere no cross-loadings, the domains have demonstrated good construct validity anddiscriminant validity.conclusion: the results of this study show that the persian version of the cpc is a reliable andvalid questionnaire. although further improvement of this measure is clearly required, itsuggests being a potential basis for investigating the determinants and health effects of cpc.