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Internal Structure, Invariance, and Rasch Analyses: A Work-Life Integration-Blurring Scale
Juanita Hincapié Pinzón1,2, Andressa Melina Becker da Silva3,4, Monique Cristielle Silva da Silva2
1Faculty of Psychology, Universidad Católica de Valencia San Vicente Mártir, Sede Padre Jofré, Av., Ilustración nº2, 46100 Valencia, Spain.
Abstract:
The aim of the study was to develop a role blurring (RB) tool to measure work-life integration in different contexts. A final number of 19 items was examined. Psychometric properties in both Spanish and Brazilian Portuguese versions were analysed, comparing the invariance of the measure between the two countries, and setting the difficulty parameter of the items. Thus, a total of two incidental samples volunteered to participate in the study: a Spanish sample of n = 498 and a Brazilian sample of n = 379 were recruited. Confirmatory factor analysis (CFA), as well as an invariance analysis, were performed between the two countries, in order to test the homogeneity structure of the measure. In addition, the item response theory (IRT) was used to establish the probability of response and difficulty of the items through a Rasch analysis. The confirmatory factor analysis pointed to a unifactorial structure. There were no statistically significant alterations in the model fit indices, and the Rasch rating scale model (RSM) showed adequate infit and outfit values, as well as successive response categories located in the expected order for all items.
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