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Articles 1 - 10 of 10
Full-Text Articles in Education
Gamsat: A 10-Year Retrospective Overview, With Detailed Analysis Of Candidates¿ Performance In 2014, Annette Mercer, Brendan Crotty, Louise Alldridge, Luc Le, Veronica Vele
Gamsat: A 10-Year Retrospective Overview, With Detailed Analysis Of Candidates¿ Performance In 2014, Annette Mercer, Brendan Crotty, Louise Alldridge, Luc Le, Veronica Vele
Dr Luc Tu Le
Background: The Graduate Australian Medical Schools Admission Test (GAMSAT) is undertaken annually in centres around Australia and a small number of overseas locations. Most Australian graduate entry medical schools also use Grade Point Average and interview score for selection. The aim of this study was to review the performance of the GAMSAT over the last 10 years; the study provides an analysis of the impact of candidates’ gender, age, language background, level of academic qualification and background discipline on performance; and details on the performance of higher-scoring candidates. These analyses were undertaken on the 2014 data; and trends in the …
Accuracy Of Rasch Model Item Parameter Estimation, Luc Le, Ray Adams
Accuracy Of Rasch Model Item Parameter Estimation, Luc Le, Ray Adams
Dr Luc Tu Le
This study used Monte Carlo simulations to evaluate the item parameter recovery from ACER ConQuest 3 software (Adams, Wu, & Wilson, 2012) for the dichotomous Rasch model. The authors’ primary focus was the comparison of its estimation methods, joint maximum likelihood (JML), marginal maximum likelihood (MML) with a normal distribution assumption and MML with a discrete distributions assumption when the populations were in fact non-normal. The simulation data sets were generated with two test lengths (10 and 50 items) and four alternative true population distributions for the abilities: normal, bimodal, uniform, and chi-square. As expected, results showed that MML-Normal was …
Graduate Skills Assessment : Stage One Validity Study, Sam Hambur, Ken Rowe, Luc Le
Graduate Skills Assessment : Stage One Validity Study, Sam Hambur, Ken Rowe, Luc Le
Dr Luc Tu Le
The Graduate Skills Assessment (GSA) is a new test with complex aims and is in the first stages of development and application. Principally, the test aims to assess a set of valued and widely applicable generic skills that may be developed by the university experience and which are relevant to university achievement and graduate work. This publication reports on the validity of the first stage of the Graduate Skills Assessment test (GSA Stage One Validity Study), which covers the first two tests, Exit 2000 and Entry 2001. These tests involved the participation of 3663 students drawn from nine broad fields …
Differential Performance Of Poor Readers In International Mathematics Tests By Item Formats, Luc Le
Differential Performance Of Poor Readers In International Mathematics Tests By Item Formats, Luc Le
Dr Luc Tu Le
The important role of language, including reading, on student performance on assessments in school academic areas such as mathematics has been addressed in number of studies. Although positive relations between different aspects of reading and mathematics performance have been investigated, there have been few studies focusing on the interaction between the context of the mathematics item and student reading proficiency, and most of those there were related only to the verbal loading. Recently, a low correlation between verbal loading and item difficulty was found for PISA mathematics items. This study used PISA 2003 mathematics data with 41 countries with about …
Effect Of Gender And Reading Ability On Questions In The Target Language In L2 Listening Tests, Luc Le, Anna Filipi, Bernadette Brouwers
Effect Of Gender And Reading Ability On Questions In The Target Language In L2 Listening Tests, Luc Le, Anna Filipi, Bernadette Brouwers
Dr Luc Tu Le
No abstract provided.
Investigating Gender Differential Item Functioning Across Countries And Test Languages For Pisa Science Items, Luc Le
Dr Luc Tu Le
This study uses PISA cycle 3 field trial data to investigate the relationships between gender differential item functioning (DIF) across countries and test languages for science items and their formats and the four other dimensions defined in PISA framework: focus, context, competency, and scientific knowledge. The data used were collected from 60 test language groups by 50 participating countries with a total of about 83,000 15-year-old students. An IRT method is used to detect the gender uniform DIF for each of the language groups and the whole international sample. Gender directions have been drawn for each of the five item …
Effects Of Item Positions On Their Difficulty And Discrimination : A Study In Pisa Science Data Across Test Language And Countries, Luc Le
Dr Luc Tu Le
No abstract provided.
Analysis Of Differential Item Functioning, Luc Le
Reverse Polyblock Approximation For Optimization Over The Weakly Efficient Set And Efficient Set, Luc Le
Reverse Polyblock Approximation For Optimization Over The Weakly Efficient Set And Efficient Set, Luc Le
Dr Luc Tu Le
A new method is developed for maximizing a concave function over the weakly efficient set, or the efficient set. The method consists of converting the problem into a monotonic optimization problem and solving the latter by a reverse polyblock approximation algorithm.
A New Approach To Optimization Under Monotonic Constraint, H Tuy, Luc Le
A New Approach To Optimization Under Monotonic Constraint, H Tuy, Luc Le
Dr Luc Tu Le
A new efficient branch and bound method is proposed for solving convex programs with an additional monotonic nonconvex constraint. Computational experiments demonstrated that this method is quite practical for solving rank k reverse convex programs with much higher values of k than previously considered in the literature and can be applied to a wider class of nonconvex problems.