The purpose of this study was to evaluate the reliability and the validity of Deficiency and Excess Pattern
Identification Questionnaire. The number of subjects enrolled in this study was 248, from July 2015 to March. 2016.
The surveys was conducted two times with 3 month interval. The Cronbach’s α analysis for internal reliability,
Pearson Correlation Coefficient analysis for test-retest reliability were conducted. Factor analysis with varimax rotation
for construct validity was used. Kappa analysis for diagnostic reliability were used. The significant p-value was < .05.
The Cronbach’s α was .929 in Deficiency and .932 in Excess questionnaire. The reliabilities between test and retest
Intra Correlation Coefficient (ICC) was .71-.762 in the Deficiency, and .58-.786 in Excess questionnaire, respectively.
Deficiency was divided by five factors, and Excess four factors. The factor convergence was 72.54% in the Deficiency
and 67.5% in Excess questionnaire. The test-retest agreement of four pattern was 68.5% and Kappa was .530. This
study reveals that Deficiency and Excess Pattern Identification Questionnaire is a reliable and valid. However, further
study to validate the questionnaire is needed. |
