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Selected Works

2006

Research

Articles 1 - 4 of 4

Full-Text Articles in Education

Modelling Mathematics Problem Solving Item Responses Using A Multidimensional Irt Model, Margaret Wu, Ray Adams Sep 2006

Modelling Mathematics Problem Solving Item Responses Using A Multidimensional Irt Model, Margaret Wu, Ray Adams

Prof Ray Adams

This research examined students' responses to mathematics problem- solving tasks and applied a general multidimensional IRT model at the response category level. In doing so, cognitive processes were identified and modelled through item response modelling to extract more information than would be provided using conventional practices in scoring items. More specifically, the study consisted of two parts. The first part involved the development of a mathematics problem-solving framework that was theoretically grounded, drawing upon research in mathematics education and cognitive psychology. The framework was then used as the basis for item development. The second part of the research involved the ...


Learning About Teaching : Using Video, Hilary Hollingsworth Apr 2006

Learning About Teaching : Using Video, Hilary Hollingsworth

Dr Hilary Hollingsworth

This article describes some Australian research and professional development projects that use classroom video data, and explains some of the positive outcomes, as well as some of the challenges, of these projects. A variety of methodologies have been used to collect, store, retrieve, code, navigate and analyse classroom video data. These include CD-Rom, DVD and web streaming to dedicated software platforms. Video is used to preserve classroom activity so that it can be 'slowed down' to enable detailed examinations of teaching and learning from multiple perspectives, reveal alternatives through comparative analysis, and stimulate discussions about choices related to teaching learning ...


Application Of Multivariate Rasch Models In International Large-Scale Educational Assessments, Ray Adams, Margaret Wu, C Carstensen Dec 2005

Application Of Multivariate Rasch Models In International Large-Scale Educational Assessments, Ray Adams, Margaret Wu, C Carstensen

Prof Ray Adams

In large-scale educational assessments, such as the Programme for International Student Assessment (PISA) and the Trends in International Mathematics and Science Study (TIMSS), a primary concern is with the estimation of the population-level characteristics of a number of latent variables and the relationships between latent variables and other variables. Typically these studies are undertaken in contexts in which there are constraints on sample size and individual student response time, yet there are high expectations with regard to the breadth of content coverage. These demands and constraints have resulted in such studies using rotated-booklet designs, with each student responding to a ...


The Mixed-Coefficients Multinomial Logit Model : A Generalized Form Of The Rasch Model, Ray Adams, Margaret Wu Dec 2005

The Mixed-Coefficients Multinomial Logit Model : A Generalized Form Of The Rasch Model, Ray Adams, Margaret Wu

Prof Ray Adams

Since Rasch's introduction of his item response models, there has been a proliferation of extensions and alternatives, each of which has a different name and different matching software package. The proliferation of models has, in some ways, been a hindrance to practitioners. This paper presents a generalised item response model that provides a unifying framework for a large class of Rasch-type models. The advantages of a single framework include mathematical elegance, generality in a single software package, and a facilitation of the development, testing, and comparison of new models. The unified model is a multidimensional item response model, the ...