title: Confirmatory factor analysis and psychometric properties of the Yale-Brown-Cornell Eating Disorders Scale Self-Report version (SR-YBC-EDS) in Spanish clinical and non-clinical samples.
abstract: OBJECTIVE
  The aim of the study was to adapt and validate the Yale-Brown-Cornell Eating Disorder Scale (YBC-EDS) transformed into a self-report format in Spanish clinical and non-clinical samples.
  
  
  METHODS
  Eighty-three eating disordered patients and 358 non-clinical participants completed the Self Report-YBC-EDS version (SR-YBC-EDS), the Eating Attitudes Test (EAT), and the Penn State Worry Questionnaire (PSWQ).
  
  
  RESULTS
  Confirmatory factor analyses of a two-factor second-order model showed adequate values of goodness-of-fit indices for non-clinical (normed χ(2)=13.4578; df =18; NFI=0.980; GFI=1.00; RMSEA=0.00) and clinical samples (normed χ(2)=26.5913; df =18; NFI=0.944; GFI=0.981; RMSEA=0.076). The factor loadings were high (preoccupations range: 0.69-0.91; rituals range: 0.61-0.94). Cronbach's alpha (range α=0.85-0.90) and test-retest 2weeks later (range: 0.84-0.91) were excellent in both samples. SR-YBC-EDS showed moderate-high indices of convergent validity with PSWQ and EAT. For the total score, a cutoff of 13 showed a sensitivity of 90.4%, a specificity of 91.6%, and a diagnostic accuracy of 91.4%. Positive and negative predictive values were excellent (71.4% and 97.6%, respectively).
  
  
  CONCLUSIONS
  Findings indicate that the SR-YBC-EDS is a reliable and valid instrument to identify symptoms and assess the severity of ED, and it can be used as a faster and less costly alternative to the YBC-EDS interview.
authors.affiliation: Departamento de Personalidad, evaluación y tratamientos psicológicos, Facultad de Psicología. University of Valencia. Av. Blasco Ibáñez, 21, 46010, Valencia (Spain); Ciber Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (Spain). Electronic address: perpinya@uv.es.
authors.forename: Conxa
authors.initials: C
authors.lastname: Perpiñá
authors.affiliation: Departamento de Personalidad, evaluación y tratamientos psicológicos, Facultad de Psicología. University of Valencia. Av. Blasco Ibáñez, 21, 46010, Valencia (Spain).
authors.forename: Martha
authors.initials: M
authors.lastname: Giraldo-O'Meara
authors.affiliation: Departamento de Personalidad, evaluación y tratamientos psicológicos, Facultad de Psicología. University of Valencia. Av. Blasco Ibáñez, 21, 46010, Valencia (Spain).
authors.forename: María
authors.initials: M
authors.lastname: Roncero
authors.affiliation: Departamento de Estadística e Investigación Operativa Aplicadas y Calidad, Universidad Politécnica de Valencia, Camino de Vera s/n, A-7. 46022, Valencia , (Spain).
authors.forename: Mónica
authors.initials: M
authors.lastname: Martínez-Gómez
mesh_terms: D000293:Adolescent; D000328:Adult; D005163:Factor Analysis, Statistical; D001068:Feeding and Eating Disorders / Q000175:diagnosis* / Q000523:psychology*; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D057566:Self Report; D055815:Young Adult
keywords: Confirmatory-Factor-Analysis; Self-report; Yale–Brown–Cornell Eating Disorders- Scale