Análisis psicométrico de la escala de percepción de estrés en población general ecuatoriana

Abstract

Abstract: The objective of this research was to analyze the psychometric properties of Cohen's Perceived Stress Scale, in its 10-item version (EPP-10) for the general Ecuadorian population aged between 18 and 80 years. Through the exploratory factorial analysis, the EEP-10 showed a bifactorial structure that explained 65.9% of the total accumulated variance; In addition, through confirmatory factor analysis, three models were compared (one-dimensional, two-factorial without considering correlation between errors, and two-factorial considering correlation between errors), finding that the best fit was given for the case of the two-factor structure that considered the correlation between errors (CFI = 0.958; SRMR= 0.0535; RMSEA = 0.0932). Regarding reliability, it was excellent for the general scale (α =.827 and ω=847) and regarding the concurrent validity, it showed a positive correlation with instruments that measure similar constructs such as the Patient Health Questionnaire (r=0.741; p=0.00) and the Acceptance and Action Questionnaire (r=0.741; p=0.00). It can be concluded that the perceived stress scale (EEP-10) is a reliable and valid instrument in the general Ecuadorian population.