title: Psychometric properties of the Eating Disorder Examination Questionnaire (EDE-Q) and norms for rural and urban adolescent males and females in Mexico.
abstract: OBJECTIVE
  To contribute new evidence to the controversy about the factor structure of the Eating Disorder Examination Questionnaire (EDE-Q) and to provide, for the first time, norms based on a large adolescent Mexican community sample, regarding sex and area of residence (urban/rural).
  
  
  METHODS
  A total of 2928 schoolchildren (1544 females and 1384 males) aged 11-18 were assessed with the EDE-Q and other disordered eating questionnaire measures.
  
  
  RESULTS
  Confirmatory factor analysis of the attitudinal items of the EDE-Q did not support the four theorized subscales, and a two-factor solution, Restraint and Eating-Shape-Weight concern, showed better fit than the other models examined (RMSEA = .054); measurement invariance for this two-factor model across sex and area of residence was found. Satisfactory internal consistency (ω ≥ .80) and two-week test-retest reliability (ICCa ≥ .84; κ ≥ .56), and evidence for convergent validity with external measures was obtained. The highest attitudinal EDE-Q scores were found for urban females and the lowest scores were found for rural males, whereas the occurrence of key eating disorder behavioural features and compensatory behaviours was similar in both areas of residence.
  
  
  CONCLUSIONS
  This study reveals satisfactory psychometric properties and provides population norms of the EDE-Q, which may help clinicians and researchers to interpret the EDE-Q scores of adolescents from urban and rural areas in Mexico.
authors.affiliation: Laboratori d'Estadística Aplicada, Departament de Psicobiologia i Metodologia de les Ciències de la Salut, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain.
authors.forename: Eva
authors.initials: E
authors.lastname: Penelo
authors.affiliation: Academia Instrumental del Programa Académico de Psicología, Universidad Autónoma de Nayarit, Tepic, Nayarit, Mexico ; Unitat d'Avaluació I Intervenció en Imatge Corporal, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain.
authors.forename: América
authors.initials: A
authors.lastname: Negrete
authors.affiliation: Unitat d'Avaluació I Intervenció en Imatge Corporal, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain ; Departament de Psicobiologia i Metodologia de les Ciències de la Salut, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain.
authors.forename: Mariona
authors.initials: M
authors.lastname: Portell
authors.affiliation: Unitat d'Avaluació I Intervenció en Imatge Corporal, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain ; Departament de Psicologia Clínica i de la Salut, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain.
authors.forename: Rosa M
authors.initials: RM
authors.lastname: Raich
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D001519:Behavior; D002648:Child; D002947:Cities / Q000706:statistics & numerical data*; D005163:Factor Analysis, Statistical; D001068:Feeding and Eating Disorders / Q000453:epidemiology / Q000523:psychology*; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D011594:Psychometrics / Q000592:standards*; D012016:Reference Values; D015203:Reproducibility of Results; D012424:Rural Population / Q000706:statistics & numerical data*; D012737:Sex Factors; D011795:Surveys and Questionnaires