Item response theory

Anthony Woods · Rosemary Baker

27 citations0/0 files storedLanguage Testing

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Psychometric Methodologies and Testing EFL/ESL Teaching and Learning Educational Assessment and Pedagogy

Abstract

A perennial problem for language testers is the need to construct and select test items with 'good' properties. The difficulty lies in the need to assess the properties of items by trying them out on a sample of subjects whose abilities, in turn, it ought to be possible to measure by observing their response to the items. This paper discusses the more important concepts of item response theory (IRT) - a technique, or set of tech niques, developed over the last 25 years, mainly by psychometricians. (An application of IRT was discussed in a recent issue of this journal (Henning, (1984).) Basic concepts are introduced and their implications considered by concentrating on the simplest IRT tool, the Rasch (1960) Model.

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1961Probabilistic Models for Some Intelligence and Attainment Tests 1973A Goodness of Fit Test for the Rasch Model 1968An Analysis of the Verbal Scholastic Aptitude Test Using Birnbaum's Three-Parameter Logistic Model 1977Estimating the Parameters of the Latent Population Distribution 1979Consequences of Using the Rasch Model for Educational Assessment*1977MISUNDERSTANDING THE RASCH MODEL 1984Advantages of latent trait measurement in language testing

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2013Fifty Years of Language Assessment

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