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Avaliação Psicológica

versão impressa ISSN 1677-0471

Resumo

ANDRADE, Josemberg Moura de; LAROS, Jacob Arie  e  GOUVEIA, Valdiney Veloso. The use of item response theory in educational assessment: directions for researchers. Aval. psicol. [online]. 2010, vol.9, n.3, pp. 421-435. ISSN 1677-0471.

Item response theory (IRT) is considered as a landmark of modern psychometrics by a great number of specialists. IRT is a set of mathematical models that considers the item like the basic unit of analysis and that relates the probability of a correct response of an examinee on an item in function of the item parameters and underlying latent trait of the evaluated person. This current paper aims to discuss the assumptions of IRT, the various models and applications in large scale educational assessment. Also, the utilization of the software program Bilog-MG is commented. Taking the complexity of the exposed topic into consideration, we do not intend to exhaust it, but are trying to offer support to researchers when making decisions in the process of performing psychometric analyses using IRT.

Palavras-chave : Psychometrics; Latent trait theory; arge scale educational tests.

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