SciELO - Scientific Electronic Library Online

 
vol.46 issue6Infant exposure to potentially toxic plasticizers in products for oral useConstruct validity, reliability, and cutoff point of the Subjective Symptoms of Fatigue Test in Mexican workers author indexsubject indexarticles search
Home Page  

Salud Pública de México

Print version ISSN 0036-3634

Abstract

UNIKEL-SANTONCINI, Claudia; BOJORQUEZ-CHAPELA, Ietza  and  CARRENO-GARCIA, Silvia. Validation of a brief questionnaire to measure the risk of abnormal eating behaviors. Salud pública Méx [online]. 2004, vol.46, n.6, pp. 509-515. ISSN 0036-3634.  http://dx.doi.org/10.1590/S0036-36342004000600005.

OBJETIVE: To assess the validity and reliability of a questionnaire for the screening of risk eating behaviors. MATERIAL AND METHODS: The questionnaire was applied to female high school students in Mexico City in October2002, as well as to a sample of eating disorder patients seen at the Eating Disorders Unit of the National Institute of Psychiatry between September and December 2002. Statistical methods included internal consistency analysis (Cronbach's alpha) and factor and principal component analysis with oblique rotation. The cutoff point, sensitivity, specificity, and predictive values of the questionnaire were determined using 2 x 2 tables. RESULTS: The questionnaire showed a high reliability (·=0.83) and a three-factor structure with 64.7% of the total explained variance. A discriminant analysis showed that almost 90% of cases were correctly classified. CONCLUSIONS: This questionnaire is reliable and valid for assessing risk eating behaviors in the study population.

Keywords : risky feeding behavior; reproducibility of results; Mexico.

        · abstract in Spanish     · text in Spanish     · pdf in Spanish