Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 6 of 6
Full-Text Articles in Education
The Estimation Of Polytomous Item Response Models With Many Dimensions, Nikolai Volodin, Ray J. Adams
The Estimation Of Polytomous Item Response Models With Many Dimensions, Nikolai Volodin, Ray J. Adams
Professor Ray Adams
Identification conditions and an improved estimation method for a D-dimensional mixed coefficients multinomial logit model are discussed. This model is a generalisation of the Adams and Wilson (1997) random coefficients multinomial logit and it can be used to fit multdimensional forms of a wide range of Rasch measurement models. The computational demands of the numerical integration required in fitting such models have limited previous implementations to three and perhaps four-dimensional problems (Glas, 1992; Adams, Wilson and Wang, 1997). This paper illustrates a Monte Carlo integration method that permits the estimation of models with much higher dimensionality. The example in this …
Don't Mention The 'T' Word: Value And Validity In Testing Visual Literacy, Ian M. Brown, Lori Lockyer
Don't Mention The 'T' Word: Value And Validity In Testing Visual Literacy, Ian M. Brown, Lori Lockyer
Professor Lori Lockyer
As a result of the expanding global view of literacy an Australian research team has been exploring the concept of testing for visual literacy development. A study has been established to develop a standards referenced test to explore learning development and learning designs appropriate for multiliteracy development for secondary students. This paper will present the development of the test, the validation and the results achieved. The establishment of a test for visual literacy will evaluate, improve and provide information on student learning.
Breathlessness Is Not A Normal Part Of Aging: Development And Testing Of Asthma Awareness Messages For Older Australians, Sandra C. Jones, Uwana Evers, Donald C. Iverson, Peter Caputi, Sara Morgan, Michele Goldman
Breathlessness Is Not A Normal Part Of Aging: Development And Testing Of Asthma Awareness Messages For Older Australians, Sandra C. Jones, Uwana Evers, Donald C. Iverson, Peter Caputi, Sara Morgan, Michele Goldman
Sandra Jones
At least 420,000 Australian adults aged 55 years and over, or one in 10, currently have asthma (Australian Centre for Asthma Monitoring 2008). Asthma is under-diagnosed, often misdiagnosed, and undertreated in the older adult population in Australia (Gibson, McDonald and Marks 2010, Marks and Poulos 2005, Wilson et al 2001) as it is overseas. Contrary to the perception that asthma is a childhood disease, asthma can develop in older adults (Adams and Ruffin 2005). The risk of dying from asthma increases with age (AIHW 2010). While the overall mortality rate has decreased by almost 70% since 1989, much of this …
Trialling Of Test Items; Is The Data A Reliable Predictor Of Final Test Performance?, Ross Hudson
Trialling Of Test Items; Is The Data A Reliable Predictor Of Final Test Performance?, Ross Hudson
Dr Ross Hudson
Trialling is seen as a necessary first step in producing a reliable valid assessment tool. However, how reliable is the trialling result in terms of predicting population test performance?
Pisa Reading Literacy Framework, Juliette Mendelovits
Pisa Reading Literacy Framework, Juliette Mendelovits
Juliette Mendelovits
No abstract provided.
Adaptive Testing For Psychological Assessment: How Many Items Are Enough To Run An Adaptive Testing Algorithm?, Michaela Wagner-Menghin, Geoff Masters
Adaptive Testing For Psychological Assessment: How Many Items Are Enough To Run An Adaptive Testing Algorithm?, Michaela Wagner-Menghin, Geoff Masters
Prof Geoff Masters AO
Although the principles of adaptive testing were established in the psychometric literature many years ago (e.g., Weiss, 1977), and practice of adaptive testing is established in educational assessment, it is not yet widespread in psychological assessment. One obstacle to adaptive psychological testing is a lack of clarity about the necessary number of items to run an adaptive algorithm. The study explores the relationship between item bank size, test length and measurement precision. Simulated adaptive test runs (allowing a maximum of 30 items per person) out of an item bank with 10 items per ability level (covering .5 logits, 150 items …