Acessibilidade / Reportar erro

The 35- Item Delaying Gratification Inventory (DGI-35): Psychometric Properties of the Brazilian Version

Abstract

The Delaying Gratification Inventory (DGI-35) was developed to evaluate different levels of gratification delaying in the general population. The purpose of this study was to present the psychometrics properties of the DGI-35 in the Brazilian population and evidence of convergent validity with the Barrat Impulsivity Scale (BIS-11). A total of 405 participants were selected (61.2% women) aged between 18 and 46 years (M = 22.32, SD = 4.78). Exploratory and confirmatory factor analyses were conducted to evaluate the internal structure of the instrument. Four out of five original factors showed identical consistency, except for the “Physical” factor that did not fit the model, leading to the creation of an alternative of 28 items to the original scale (DGI-28), which presented good fit indices. As expected, the global score of the DGI-28, as well as its factors were negatively correlated to the global score of the BIS-11.

Keywords:
delay discounting; reward; impulsive behaviour; psychometrics; factor analysis; psychological tests

Universidade de São Francisco, Programa de Pós-Graduação Stricto Sensu em Psicologia R. Waldemar César da Silveira, 105, Vl. Cura D'Ars (SWIFT), Campinas - São Paulo, CEP 13045-510, Telefone: (19)3779-3771 - Campinas - SP - Brazil
E-mail: revistapsico@usf.edu.br