RESUMO
BACKGROUND: The assessment of hopelessness plays a significant role in preventing various psychological disorders and major life events within the general population. However, the psychometric properties of the Beck Hopelessness Scale (BHS) have been a subject of controversy, primarily studied in clinical groups. The aim of the present study was to gain new psychometric insights and propose a new short version of the BHS for the general population using the Item Response Theory (IRT) approach. METHODS: A total of 2164 Argentinean individuals completed the BHS alongside the Inventory of Suicide Orientation-30. We compared IRT models with two and three parameters for the original BHS version, exploring the removal of redundant and less informative items. Convergent and discriminant validity was also examined. RESULTS: Our results support the 2PL model for the BHS-19. In addition, the BHS-10 short version adequately depicted the same range of the measured trait as the original version, showing reasonable measurement accuracy in the middle-high levels of the trait (marginal reliability = 0.70, Cronbach's α = 0.86). Notably, a positive correlation was found between the factorial score of BHS-10, BHS-19, and suicide orientation. CONCLUSIONS: In conclusion, our findings support the use of a simplified version as a practical and valuable tool for both research and clinical practice in the future.
Assuntos
Esperança , Psicometria , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Adulto Jovem , Escalas de Graduação Psiquiátrica/normas , Suicídio/psicologia , Adolescente , Idoso , Argentina , Inquéritos e Questionários/normas , Depressão/psicologia , Depressão/diagnóstico , Ideação SuicidaRESUMO
El presente estudio instrumental evaluó las propiedades psicométricas del Inventario de Orientación Suicida ISO-30 con 1922 adolescentes escolarizados de la ciudad de Bogotá. La validez de constructo del inventario se estableció a través de un análisis factorial confirmatorio, utilizándose el método de mínimos cuadrados generalizados (GLS), dando lugar un modelo factorial sustentable, compuesto por cinco factores, igual al inventario original. La confiabilidad del instrumento se estableció, a través del coeficiente Alfa de Cronbach, obteniéndose una confiabilidad excelente (α= .0915) y un coeficiente Omega (Ω=.742). El análisis de reactivos relativo al poder de discriminación del inventario obtuvo un 57% en las correlaciones ítem-escala total con un nivel de discriminación excelente. Se presenta evidencia respecto a la validez y confiabilidad del ISO-30 para evaluar la orientación al suicidio en adolescentes colombianos
The present instrumental study evaluated the psychometric properties of the Inventory of Suicide Orientation - ISO-30 with 1922 school adolescents from Bogotá. The construct validity of the inventory was established through confirmatory factor analysis, using the generalized least squares (GLS) technique, through which a sustainable factorial model was obtained, composed of five factors equal to the original inventory. The reliability of the instrument was established using Cronbach's Alpha coefficient with an excellent result (α= .915) and an omega coefficient (Ω=.742). The analysis of the items, relative to the discrimination power of the items, obtained 57% in item-total scale correlations with an excellent level of discrimination power. These findings prove ISO-30 to be a valid and reliable instrument for evaluating suicide orientation among Colombian adolescents.