Validity and Reliability of the Diabetes Eating Problem Survey-Revised (DEPS-R) in Mexican Population: An Instrumental Study

Abstract

Objective: To evaluate the validity and reliability of the Diabetes Eating Problem Survey-Revised (deps-r) instrument to identify the risk of eating disorders (ed) in a Mexican population diagnosed with Diabetes Mellitus (dm). Methods: A three-stages instrument validation study. Stage 1. Translation: three translators, whose native language was Spanish, translated the English version of the deps-r instrument; Stage 2. Using the Delphi method, the validity of the content was estimated through an evaluation of five experts; subsequently the wording was evaluated applying the instrument to a pilot group of ten people; finally, the instrument was applied to a calculated sample (95% confidence interval; 5% error rate) of 130 patients. Stage 3: A psychometric evaluation was carried out, calculating Cronbach’s alpha, and Spearman’s correlation coefficients. Results: Cronbach’s alpha was 0.72. Spearman’s correlation coefficient was calculated, highlighting the weight/score ratio obtained in the second version of the deps-r with 0.3645 (p<0.0001). Conclusion: there is good reliability in the translated and validated version of the instrument, making it an adequate screening measure for the identification of ed in the Mexican population.