Rasch model analysis of the Depression, Anxiety and Stress Scales (DASS)

Abstract

Background: There is a growing awareness of the need for easily administered, psychometrically sound screening tools to identify individuals with elevated levels of psychological distress. Although support has been found for the psychometric properties of the Depression, Anxiety and Stress Scales (DASS) using classical test theory approaches it has not been subjected to Rasch analysis. The aim of this study was to use Rasch analysis to assess the psychometric properties of the DASS-21 scales, using two different administration modes.

Dimensionality of the UWES-17: An item response modelling analysis

“…The χ 2 reflects the property of invariance across a trait and a significant χ 2 implies that the 'hierarchical ordering of the items varies across the trait, thus compromising the required property of invariance' (Pallant & Tennant, 2007, p. 5). For excellent model fit, fit residuals should be as close to 0 as possible; items will fail to fit the model adequately when fit residuals exceed |2.5| (Shea, Tennant & Pallant, 2009). Visual comparison of the expected and observed ICCs were employed to gain a better understanding of the degree of misfit (Bond & Fox, 2007).…”

Confirmatory Factor Analysis of Persian Version of Depression, Anxiety and Stress (DASS-42): Non-Clinical Sample

“…This version is comparable to DASS-42 through multiplied by number 2 (11). Questions of this scale are related to last week and rated from 0 (does not apply in my case) to 3 (applicable in my case) (12).…”

Análisis psicométrico de la Escala de Depresión CES-D bajo el modelo de crédito parcial de Rasch

“…La media de la edad de los alumnos evaluados fue de 20,4 ± 5.15 años, el 53,0% fueron mujeres y el 47,0% fue- • Shea, Tennant & Pallant (2009) evaluaron con el MCP de Rasch la escala de depresión, ansiedad y estrés (DASS). Para ello trabajaron con una muestra de 745 participantes.…”