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Avaliação Psicológica

Print version ISSN 1677-0471On-line version ISSN 2175-3431


GURGEL, Léia Gonçalves et al. Computerized and Dynamic Writing Test: Evidence of validity based on IRT. Aval. psicol. [online]. 2021, vol.20, n.1, pp. 33-42. ISSN 1677-0471.

This study aimed to investigate evidence of accuracy and validity based on the internal structure of the Computerized and Dynamic Writing Test, using the Item Response Theory. A total of 304 participants from Porto Alegre, aged between 10 and 17 years, were included. The aim of this study was to evaluate the adolescents' potential for learning in narrative writing. The dimensionality of the modules under analysis was verified by means of factorial analysis, satisfying criterion for the accomplishment of the analyses through IRT. The pre-test module was adjusted for the two-parameter logistic model, with Cronbach's Alpha of .82. All items presented adequate discrimination values ​​between 1.88 and 3.49. The difficulty of the items ranged from -0.01 to 1.27. The instructional module was adjusted using Samejima's graded response model, presenting a Cronbach's alpha of .91. Accordingly, evidence of validity based on the internal structure of the CDWT was observed.

Keywords : validity studies; psychometry; adolescents; item response theory.

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