Validation of the SCOFF questionnaire for screenin

Authors: Omar SanchezArmass Marcela Raffaelli Flavia Cristina Drumond Andrade Angela R Wiley Aida Nacielli Morales Noyola Alejandra Cepeda Arguelles Celia AradillasGarcia

Publish Date: 2016/02/29

Volume: 22, Issue: 1, Pages: 153-160

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Abstract

The study was conducted in two phases in 2012 Phase I involved the administration of selfreport measures the SCOFF and the Eating Disorder Inventory2 EDI2 to 1057 students aged 17–56 years M age = 210 SD = 34 67  female from three colleges at the Universidad Autónoma de San Luis Potosí Mexico In Phase II a random subsample of these students n = 104 participated in the eating disorder examination a structured interview that yields ED diagnoses Analyses were conducted to evaluate the SCOFF’s criterion validity by examining a correlations between scores on the SCOFF and the EDI2 and b the SCOFF’s ability to differentiate diagnosed ED cases and noncasesEDI2 subscales showed high correlations with the SCOFF scores proving initial evidence of criterion validity A score of two points on the SCOFF optimized the sensitivity 78  and specificity 84  With this cutoff the SCOFF correctly classified over half the cases PPV = 58  and screened out the majority of noncases NPV = 93  providing further evidence of criterion validity Analyses were repeated separately for men and women yielding genderspecific information on the SCOFF’s performance

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