Multidimensional unfolding: the latitude of acceptance and the structure of the single peaked response process in a multidimensional space. The latitude of acceptance and the operational function that structures the single peaked response process have only recently been understood as central to unidimensional models for the measurement of attitude, preference and choice. They have been neglected in multidimensional models. This project will formalise these two central components in a multidimens ....Multidimensional unfolding: the latitude of acceptance and the structure of the single peaked response process in a multidimensional space. The latitude of acceptance and the operational function that structures the single peaked response process have only recently been understood as central to unidimensional models for the measurement of attitude, preference and choice. They have been neglected in multidimensional models. This project will formalise these two central components in a multidimensional space. The operational function governs the relationship between any item-person distance and the latitude of acceptance defines a multidimensional hyper-sphere within which the more positive response is more likely. The project will articulate and operationalise these models for a range of typical response formats from ranking to pairwise preferences.Read moreRead less
Advancing the application of Rasch models to the level of tests: estimating person parameters independently of all test parameters. The project advances recent theoretical work on Rasch models which makes it possible to compare estimates of person locations on a scale independently of all properties of the tests to which they have responded. The project aims to circumvent the current methods of test equating where various distribution assumptions are implied.
Dynamic relations between values and consumer behaviour: age and life-stage. This project aims to understand the complex relations between people’s life goals and their consumption behaviour, exploring age, life-stage and cohort effects. The intended outcomes of the project include a state-of-the-art interactive values-based website, basic knowledge about Australian values, values change and value-related behaviour, and business insight into value-based marketing. This project aims to apply the ....Dynamic relations between values and consumer behaviour: age and life-stage. This project aims to understand the complex relations between people’s life goals and their consumption behaviour, exploring age, life-stage and cohort effects. The intended outcomes of the project include a state-of-the-art interactive values-based website, basic knowledge about Australian values, values change and value-related behaviour, and business insight into value-based marketing. This project aims to apply the knowledge gained from a large scale study into Australian values and value change across the adult life-span in order to understand how people’s values influence their consumer and other decisions; providing information that will enable Australian organisations to improve their marketing activities and the nature of their promotional appeals.Read moreRead less
Categorization and Working Memory: Bridging two Pillars of Cognition. Categorization is a fundamental cognitive skill that underlies much expert behavior, including medical diagnosis. A given task often gives rise to widely divergent strategies across individuals, and flawed strategies have been implicated in prediction errors of experts (e.g., bush fire fighters). This project seeks to identify the underlying variables that determine an individual's strategy acquisition by relating working memo ....Categorization and Working Memory: Bridging two Pillars of Cognition. Categorization is a fundamental cognitive skill that underlies much expert behavior, including medical diagnosis. A given task often gives rise to widely divergent strategies across individuals, and flawed strategies have been implicated in prediction errors of experts (e.g., bush fire fighters). This project seeks to identify the underlying variables that determine an individual's strategy acquisition by relating working memory performance to categorization. Working memory is a core cognitive construct that is quite well understood, but its relationship to category learning has so far remained unexplored. Being able to predict the development of categorization strategies can help maximize expert performance.Read moreRead less
Are two processes one too many? An investigation of the viability of the dual-process model of recognition memory. Memory is the glue that holds together our lives and personal identities. While psychologists are developing better and more sophisticated accounts of how it works, many deep questions remain. The present research examines some of these questions in relation to how memory can be decomposed into its component processes and how we are to understand these processes. An appropriate unde ....Are two processes one too many? An investigation of the viability of the dual-process model of recognition memory. Memory is the glue that holds together our lives and personal identities. While psychologists are developing better and more sophisticated accounts of how it works, many deep questions remain. The present research examines some of these questions in relation to how memory can be decomposed into its component processes and how we are to understand these processes. An appropriate understanding of these questions is vital to the development of interventions (both psychological and pharmacological) designed to halt or even reverse memory decline associated with normal aging and age-associated brain disease (such as Alzheimer disease).Read moreRead less
Towards an integrated model of reasoning and reasoning development. This project aims to identify the core cognitive processes that underlie different forms of reasoning and how they develop. The project intends to use a signal detection framework to derive detailed computational models of reasoning which can then be tested through Bayesian computational modelling as well as the first systematic investigation of developmental change in reasoning processes. Expected outcomes include a more princi ....Towards an integrated model of reasoning and reasoning development. This project aims to identify the core cognitive processes that underlie different forms of reasoning and how they develop. The project intends to use a signal detection framework to derive detailed computational models of reasoning which can then be tested through Bayesian computational modelling as well as the first systematic investigation of developmental change in reasoning processes. Expected outcomes include a more principled and comprehensive computational model of reasoning in both adults and children. The project should provide significant benefits by helping to resolve long-standing debates about how humans reason complex arguments relevant to everyday lives and guide development of more effective methods for teaching reasoning.Read moreRead less
Experiences of addiction, treatment and recovery: An online resource for members of the public, health professionals and policymakers. Alcohol and other drug addiction is a major health and social issue in Australia. Treatment success rates are modest and little is known about how people experience and manage addiction and the stigma that accompanies it. This project will generate new knowledge on alcohol and other drug addiction by applying a proven qualitative methodology to these issues for t ....Experiences of addiction, treatment and recovery: An online resource for members of the public, health professionals and policymakers. Alcohol and other drug addiction is a major health and social issue in Australia. Treatment success rates are modest and little is known about how people experience and manage addiction and the stigma that accompanies it. This project will generate new knowledge on alcohol and other drug addiction by applying a proven qualitative methodology to these issues for the first time. It will produce an effective, innovative online resource for affected Australians, their family and friends, and the wider Australian community including health professionals and policymakers.Read moreRead less
Maintaining a precise, invariant unit in state, national and international educational assessment. School achievement testing is a high stakes activity for state and national governments, not just for school students. Significant educational policy decisions turn on comparisons of test results over time, and among states and nations. These decisions rest on assumptions about the validity and precision of national testing. In particular, current measurement systems assume that assessment scales h ....Maintaining a precise, invariant unit in state, national and international educational assessment. School achievement testing is a high stakes activity for state and national governments, not just for school students. Significant educational policy decisions turn on comparisons of test results over time, and among states and nations. These decisions rest on assumptions about the validity and precision of national testing. In particular, current measurement systems assume that assessment scales have common units. Empirically, it is clear that many factors can compromise this assumption, making it rarely justified. This study will serve the national interest by building the theory and technology necessary to solve this problem.Read moreRead less
Maintaining invariant scales in state, national and international level assessments. Large scale assessments involve comparisons between countries, states within a country, and within these over time. For many reasons, identical items cannot be administered to every student. Nevertheless, the items must operate invariantly across groups. The Rasch models, which have invariance as an intrinsic property, are powerful in checking for such invariance. This project brings the basic research of the ....Maintaining invariant scales in state, national and international level assessments. Large scale assessments involve comparisons between countries, states within a country, and within these over time. For many reasons, identical items cannot be administered to every student. Nevertheless, the items must operate invariantly across groups. The Rasch models, which have invariance as an intrinsic property, are powerful in checking for such invariance. This project brings the basic research of the Chief Investigators to the industry partners to study, apply and document ways in which violations of Rasch models and different data collection formats are reflected as changes of scale, and how these might be controlled both statistically and empirically.Read moreRead less
Developing the capacity to model the impact of interventions that target high-risk drinking among young Australians. Alcohol use is a major contributing factor to social and health problems among young Australians. The project will inform the development of effective policy by providing multidisciplinary research evidence and the capacity to model how various interventions impact on the prevalence of alcohol-related problems.