Resumen

PLATAS ACEVEDO, Romana Silvia et al. Discriminatory power and correct classification of the Scale of Risk Factors Associated with Eating Disorders (EPHRATA-II). Rev. Mex. de trastor. aliment [online]. 2013, vol.4, n.2, pp.124-132. ISSN 2007-1523.

The increased frequency of binge eating behavior, and its relationship to overweight and obesity, expressed a national and international real health problem. The aim of the study was to establish the discriminatory and correct classification of the Scale of Risk Factors Associated with Eating Disorders (Ephrata-II), for boys and girls. The non random sample was formed by 934 public school students: 474 girls and 460 boys with a mean age of 10.6 years (SD=.80). Discriminant analysis with Mahalanobis D method, yielded a correct classification of 100% of cases at high and low risk. The food overeating dimension of psychological compensation was the most relevant, followed by chronic restricted diet. The Ephrata-II is a suitable indicator for estimation of risk factors in eating behavior of tweens, and represents a valuable contribution in the development of prevention programs for eating disorders.

Palabras llave : Discriminant analysis; Instrument of classification; estimation of risk factors; anomalous eating behavior; Mexican preadolescents.

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