The Reliability and Validity Test of Sasangin Diagnostic Questionnaire for Specialist(SDQ_S)

The Reliability and Validity Test of Sasangin Diagnostic Questionnaire for Specialist(SDQ_S) Yun-Seong Pak*, Je-Shin kim*, Byung-Joo Park*, Jung-Hee Yoo†, Jun-Hee Lee‡, Byung-Hee Koh‡, Eui-Ju Lee‡ *Dept. of Clinical Korean Medicine, Graduate School, Kyung Hee University †College of Nursing Science, Kyung Hee University ‡Dept. of Sasang Constitutional Medicine, College of Korean Medicine, Kyung Hee University Objectives The purpose of this study was to develop the Sasangin Diagnostic Questionnaire for Specialist(SDQ_S) and to evaluate the reliability and validity of SDQ_S for standardization of sasang constitutional diagnosis by korean medicine Specialist in clinical practice. Methods SDQ_S was developed through discussions of three sasang constitutional medical specialist. We recruited 210 subjects aged from 20 to 70, and conducted the evaluation of SDQ_S and sasang constitutional diagnosis. For the reliability test, internal consistency was examined by calculating the cronbach’s α coefficient on 88 items excepted measurements of trunk, and independence and agreement was examined by chi-square test and McNemar test for 84 subjects which retested SDQ_S. For the validity test, discriminant functions was derived from the sample group(105 subjects), and they were applied to the test group(105 subjects). We identified the hit-ratio of SDQ_S in the test group. Results and Conclusions In the reliability test, the cronbach’s α coefficient was 0.664 and 87 items(98.9%) have dependent relationships between 1st test and 2nd test. And 39 items(44.3%) have high agreements(0.8≤McNemar), 26 items(29.5%) have common agreements(0.4≤McNemar<0.8). In the validity test, four discriminant variables(Soeum Index, Taeeum Index, Torso Ratio I, Taeyang Index) were selected, and two discriminant functions were derived. Total hit-ratio was 74.2%, and hit-ratio of Taeeumin(76.7%) was higher than that of Soeumin(75.9%) and Soyangin(69.7%). SDQ_S has good reliability and validity for sasang constitutional diagnosis.