title: The construct validity of the Restraint Scale among mainland Chinese women.
abstract: This study aimed to test the construct validity of the newly developed Chinese version of the Revised Restraint Scale (RRS) in two separate female samples from Chinese universities (n(1) = 171; n(2) = 158). The RRS is the most widely used measure of restricted eating for the purpose of achieving or maintaining a desired weight. Results showed that the 10-item Chinese RRS comprised of two subscales of concern dieting (CD) and weight fluctuation (WF), which together accounted for 53.01% of the total variance. Confirmative factor analysis supported this two-factor model as an acceptable model (χ(2)/df = 1.545, p < 0.001; RMSEA=0.059, GFI=0.938, and CFI=0.935). Cronbach's alpha coefficients were 0.77 for RRS, 0.71 for CD and 0.66 for WF. Significant correlations were shown between RRS and its subscales ((rRRS-CD) = 0.894, p < 0.01; r(RRS-WF) = 0.850, p < 0.01; r(CD-WF) = 0.523, p < 0.01). Moreover, RS significantly correlated with the Three-Factor Eating Questionnaire-R (TFEQ-R), the Dutch Eating Behaviour Questionnaire-R (DEBQ-R), the Fatness Concern (FC) and the body measure index (BMI) (r = 0.548, p < 0.01; r = 0.631, p < 0.01; r = 0.620, p < 0.01; r = 0.351, p < 0.01, respectively). In sum, the RS has stable factor structure, acceptable internal consistency and satisfactory convergent reliability among female Chinese college students. The adapted scale may serve as a useful tool for identifying restrained and unrestrained eaters among Chinese women and may be particularly useful in assessing eating restraint before and after prevention and intervention programs.
authors.affiliation: Key Laboratory of Cognition and Personality (Ministry of Education) and School of Psychology, Southwest University, Chongqing, China.
authors.forename: Fanchang
authors.initials: F
authors.lastname: Kong
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D001835:Body Weight; D002681:China; D005163:Factor Analysis, Statistical; D005247:Feeding Behavior / Q000523:psychology*; D005260:Female; D006801:Humans; D015203:Reproducibility of Results; D013334:Students / Q000523:psychology / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D014495:Universities; D055815:Young Adult
keywords: Construct validity; Eating disorder; Internal consistency; Restraint Scale