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Se comunica la construcción de una escala para medir la gratitud a partir de una definición operacional, de dicho constructo teórico, desarrollada por el presente autor. La escala está compuesta por 18 ítems de tipo Likert, con cinco alternativas de respuesta; se administró a una muestra de 657 participantes, hombres y mujeres de 18 a 60 años de edad. La confiablidad se determinó mediante análisis ítem-test, se encontraron correlaciones significativas (media de r = 57.27). La Escala de Gratitud posee alta consistencia interna, Coeficiente Alfa de Cronbach = .90, y para ítems tipificados α = .91; Coeficiente Spearman-Brown, longitudes iguales = .87; y Dos mitades de Guttman = .87. La validez de constructo se determinó por Análisis Factorial de Componentes Principales y Rotación Ortogonal (Varimax); se extrajeron tres factores con altas saturaciones que varían de .44 a .78. Este análisis ha permitido determinar la compleja estructura interna de la gratitud.
He communicates the construction of a scale to measure the gratitude, starting from an operational definition of the theoretical construct, developed by the author. The scale is integrated by 18 items of type Likert, with five answer alternatives. It was administered to a sample of 675 men and women, from 18 to 60 years old. The reliability was determined by analysis item-test, there were significant correlations (mean from r = 57.27). The scale of gratitude present high internal consistency (Coeficient Alpha of Cronbach = 90; for standardized item= .91: Coefficient of Spearman-Brown, same longitudes =.869; and Two halves of Guttman = .87). The validity of construct was determined by Factor Analysis and the Principal Components Analysis, and Orthogonally Rotation (Varimax). Three factors were extracted, with high saturations that vary from .44 to .78. This analysis has allowed to observe the complex internal structure of gratitude.
