|Present||Senior Research Fellow, Higher Education Program, Australian Council for Educational Research (ACER)|
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Refereed Articles (6)
Contributions to Books (2)
Refereed Conference Papers and Presentations (23)
Effect of trial items on candidate performances in a large-scale ...
11th Conference of the International Test Commission (ITC) (2018)
The Graduate Australian Medical School Admissions Test (GAMSAT) is a cognitive test developed by the Australian Council for Educational Research ...
Investigating stability of item parameters in one and two-parameter partial ...
Paper presented at the European Conference on Educational Research (2015)
This study focuses on investigating the stability of item parameter estimates from partial credit model (PCM) and generalised partial credit ...
Differential performance of poor readers in international mathematics tests by ...
Paper presented at the European Conference on Educational Research (2011)
The important role of language, including reading, on student performance on assessments in school academic areas such as mathematics has ...
Investigating item difficulty change by item positions under the Rasch ...
Paper presented at the 17th International Meeting of the Psychometric Society (2011)
In operational testing programs using item response theory (IRT), item parameter invariance is one of essential requirements in common item ...