Analysis of Reliability and Validity for Clinical Experts Questionnaire about Coronary Heart Disease / 中国中医药信息杂志

ABSTRACT

Objective To study the reliability and validity of clinical experts questionnaire of syndrome factors, characteristics and evolution of coronary heart disease. Methods The clinical expert questionnaire was sent to 305 clinical doctors of cardiovascular disease. The questionnaire of coronary heart disease was described through four phases data, and reliability and validity of each module and the total scale were tested. Results Cronbach's ? coefficient of the modules varies between 0.959 3～0.972 5 and higher than 0.8, the value of the scale was 0.990 3. Split-half reliability of the modules varies between 0.891 8～0.922 5, Cronbach's ? of split-half reliability of the total scale was 0.920 7. Factor analysis showed that each module was abstracted four factors and the total contribution rate was more than 50%, the result after varimax rotation was consistent with the theory. Conclusion The questionnaire can fully reflect symptoms and signs of patients with coronary heart disease, and can be used for syndrome studies of coronary heart disease.