Abstract

GOMEZ-PERESMITRE, Gilda; PLATAS ACEVEDO, Silvia  and  PINEDA GARCIA, Gisela. A preliminary study of an online self-detection test. Risk in eating disorders. Rev. Mex. de trastor. aliment [online]. 2015, vol.6, n.1, pp.22-29. ISSN 2007-1523.  https://doi.org/10.1016/j.rmta.2015.05.005.

The aim of this study was to evaluate the usefulness of an Online Test of Self-Detection in Risk for Eating Disorder (OTSDRED) from a quantitative perspective (determining its predictive validity and classification power) and from a qualitative one (analyzing the opinions and suggestions of users). From the total sample (N = 3501) of women, 3059 were adolescents (13- 19 years), youth (20-35 years); 394 adult (36-50 years); and 48 mature adult (51-60 years). An instrument of 30 dichotomous items and multiple choice was built. Two open questions with feedback for improvement purposes and for the qualitative assessment were added. The Discriminant Analysis yielded strong discriminatory power function between groups with high and low risk for eating disorders, explaining up to 88% of the variance and 100% of correct classification. With regard to the qualitative perspective a 23% of comments (706) were obtained; the analysis and classification of its contents showed the expected effects. The results from the quantitative and qualitative analysis allowed affirmative answer regarding the usefulness of OTSDRED.

Keywords : Online self-detection; Discriminant analysis; Predictive validity; Classification power; Qualitative analysis.

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