Jinbo He1, Shaojing Sun2, Xitao Fan1. 1. Chinese University of Hong Kong (Shenzhen), Shenzhen, Guangdong, China. 2. School of Journalism, Fudan University, Guoding Road 400, Shanghai, 200433, China. shaojingsun@gmail.com.
Abstract
PURPOSE: As a 12-item Short Form of the Eating Disorder Examination Questionnaire (EDE-QS), the EDE-QS was developed based on Rasch modeling to address certain weaknesses of the EDE-Q, and it has been demonstrated to be a psychometrically sound measure. Thus, the current study aimed to obtain a Chinese version of the EDE-QS and validate its psychometric properties in the Chinese context. METHODS: According to standard procedures, the Chinese version of the EDE-QS (C-EDE-QS) was obtained. A total of 1068 Chinese college students finished the survey. The psychometric properties of the C-EDE-QS were examined under the frameworks of both classic test theory and Rasch modeling. RESULTS: The one-factor structure of the C-EDE-QS was confirmed in confirmatory factor analysis; the C-EDE-QS showed good reliability with a Cronbach's α of 0.89; and the total scores of the C-EDE-QS were significantly correlated with eating disturbances and psychological distress in expected magnitudes and directions. Rasch analysis supported the unidimensional construct of the C-EDE-QS and the four-point rating scale structure. However, results revealed differential item functioning (DIF) across gender groups. CONCLUSIONS: The findings suggest that the C-EDE-QS could be a useful tool to assess key attitudes and behavioral features of eating disorder psychopathologies in the Chinese context. LEVEL OF EVIDENCE: V, descriptive (cross-sectional) study.
PURPOSE: As a 12-item Short Form of the Eating Disorder Examination Questionnaire (EDE-QS), the EDE-QS was developed based on Rasch modeling to address certain weaknesses of the EDE-Q, and it has been demonstrated to be a psychometrically sound measure. Thus, the current study aimed to obtain a Chinese version of the EDE-QS and validate its psychometric properties in the Chinese context. METHODS: According to standard procedures, the Chinese version of the EDE-QS (C-EDE-QS) was obtained. A total of 1068 Chinese college students finished the survey. The psychometric properties of the C-EDE-QS were examined under the frameworks of both classic test theory and Rasch modeling. RESULTS: The one-factor structure of the C-EDE-QS was confirmed in confirmatory factor analysis; the C-EDE-QS showed good reliability with a Cronbach's α of 0.89; and the total scores of the C-EDE-QS were significantly correlated with eating disturbances and psychological distress in expected magnitudes and directions. Rasch analysis supported the unidimensional construct of the C-EDE-QS and the four-point rating scale structure. However, results revealed differential item functioning (DIF) across gender groups. CONCLUSIONS: The findings suggest that the C-EDE-QS could be a useful tool to assess key attitudes and behavioral features of eating disorder psychopathologies in the Chinese context. LEVEL OF EVIDENCE: V, descriptive (cross-sectional) study.
Authors: Natalie M Papini; Myungjin Jung; Amanda Cook; Nanette V Lopez; Lauren T Ptomey; Stephen D Herrmann; Minsoo Kang Journal: J Eat Disord Date: 2022-05-04