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.
Molecular force sensing mechanisms of PIEZO channels. The aim of this project is to characterise the gating mechanism of Piezo mechanosensitive ion channels recently identified in animals and humans. Mechanotransduction is ancient, as indicated by the presence of mechanosensitive channels in bacteria where these channels are activated by the bilayer mechanism according to the force-from-lipids paradigm possibly applicable to gating of the Piezo channels as well. Piezo channels play a crucial rol ....Molecular force sensing mechanisms of PIEZO channels. The aim of this project is to characterise the gating mechanism of Piezo mechanosensitive ion channels recently identified in animals and humans. Mechanotransduction is ancient, as indicated by the presence of mechanosensitive channels in bacteria where these channels are activated by the bilayer mechanism according to the force-from-lipids paradigm possibly applicable to gating of the Piezo channels as well. Piezo channels play a crucial role in senses of touch and pain, and mutations in Piezo1 have been shown to cause Xerocytosis – a hereditary genetic disorder manifested in haemolytic anemia. This project aims to help answer fundamental questions in mechanotransduction in vertebrates.Read moreRead less
Exploration, Generalisation and the Development of Learning Traps. This project addresses three fundamental questions about human decision-making; 1) how does exploratory choice lead to “learning traps”, persistent patterns of poor decision-making that cause us to miss rewards and experience losses? 2) how does susceptibility to traps change with age? 3) what strategies prevent traps or facilitate escape? The project will advance our understanding of the cognitive processes underlying adult and ....Exploration, Generalisation and the Development of Learning Traps. This project addresses three fundamental questions about human decision-making; 1) how does exploratory choice lead to “learning traps”, persistent patterns of poor decision-making that cause us to miss rewards and experience losses? 2) how does susceptibility to traps change with age? 3) what strategies prevent traps or facilitate escape? The project will advance our understanding of the cognitive processes underlying adult and child decision-making, using innovative experimental paradigms and computational modeling. Expected outcomes include a novel computational model that explains developmental change in trap formation. The results will guide strategies for improved decision-making in educational, financial, and social settings.Read moreRead less
Assessing and enhancing the quality of longitudinal survey data. Australia has begun investing heavily in the collection of population-wide longitudinal survey data. Most of that effort has focused first on collection and dissemination and second on analysis, with scant attention paid to the quality of data collected. This is unfortunate given that longitudinal surveys exhibit many problems (e.g., attrition, panel conditioning, and seam effects) that are not relevant in more ubiquitous cross-sec ....Assessing and enhancing the quality of longitudinal survey data. Australia has begun investing heavily in the collection of population-wide longitudinal survey data. Most of that effort has focused first on collection and dissemination and second on analysis, with scant attention paid to the quality of data collected. This is unfortunate given that longitudinal surveys exhibit many problems (e.g., attrition, panel conditioning, and seam effects) that are not relevant in more ubiquitous cross-section of surveys. Without adequate resources devoted to these methodological issues, the quality of substantive research will be questioned and interest from potential users decline. Maximizing the investment being made in longitudinal data thus requires a complementary investment in methodological research.Read moreRead less
The value of time during decisions. This project aims to investigate how people value time during decision making. Using an innovative combination of carefully designed experiments and state-of-the-art mathematical cognitive models, this project expects to generate new knowledge regarding how efficiently people allocate time when making decisions, the factors that allow people to perform optimally and those that lead to suboptimal performance. The anticipated outcome of the project is a new fram ....The value of time during decisions. This project aims to investigate how people value time during decision making. Using an innovative combination of carefully designed experiments and state-of-the-art mathematical cognitive models, this project expects to generate new knowledge regarding how efficiently people allocate time when making decisions, the factors that allow people to perform optimally and those that lead to suboptimal performance. The anticipated outcome of the project is a new framework for understanding the optimality of human decision making. This outcome has the potential benefit of providing insight into decision mechanisms across a range of contexts, particularly ageing and models of applied decision making.Read moreRead less
Poor Women and Lonely Men: Examining Gendered Social Inclusion and Connection in Australia. This project directly supports the national research priority goal of 'strengthening Australia's social and economic fabric' (as part of Promoting and Maintaining Good Health). Inclusive societies reap many benefits (economic, education, crime, health etc), and information revealed about relevant gendered patterns will help build social inclusion and connection in Australia by informing inclusive strategi ....Poor Women and Lonely Men: Examining Gendered Social Inclusion and Connection in Australia. This project directly supports the national research priority goal of 'strengthening Australia's social and economic fabric' (as part of Promoting and Maintaining Good Health). Inclusive societies reap many benefits (economic, education, crime, health etc), and information revealed about relevant gendered patterns will help build social inclusion and connection in Australia by informing inclusive strategies and policies. The project also supports the national research priority goal 'ageing well and productively', by informing policy-contexts of specific disadvantage, such as amongst those ageing alone. The project will also add to broader understandings about the links between social inclusion, connection and wellbeing.Read moreRead less
Cognitive models of decision making in clinical populations. This cognitive science project aims to develop new methods for mathematical modelling of decision making, and to apply these methods to study decision making in people with problem drug use. Precise measures of the thought processes underlying decision making in drug users will help to direct efforts to prevent and treat drug problems.
Maximising Real Educational ACHievement - The REACH Project: Integrating Motivation and Self-concept to Optimise Students Academic Outcomes at School. The OECD reports that academic motivation and self-concept underlie young people's educational success, affect their long-term health and wellbeing, and also impact on economic outcomes at a national level. Through enhancing students' academic motivation and self-concept, the Real Educational ACHievement (REACH) Project will develop and sustain ac ....Maximising Real Educational ACHievement - The REACH Project: Integrating Motivation and Self-concept to Optimise Students Academic Outcomes at School. The OECD reports that academic motivation and self-concept underlie young people's educational success, affect their long-term health and wellbeing, and also impact on economic outcomes at a national level. Through enhancing students' academic motivation and self-concept, the Real Educational ACHievement (REACH) Project will develop and sustain achievement that encompasses not only academic grades but also enhanced engagement, satisfaction in learning, attendance, participation, and aspirations. REACH will guide and support young Australians to achieve to their potential and through this Australian society as a whole will gain substantial educational, economic, labour market, health, and social benefits.Read moreRead less
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
Bayesian inference for psychological theories with intractable likelihood. This project pursues breakthroughs which allow important questions of basic and applied science to be addressed using mathematical theories from cognitive psychology. Advances are made through an interdisciplinary effort, combining recent developments in econometric and statistical methods and cognitive science. The outcomes will advance knowledge and open up new avenues for applied research in important aspects of psych .... Bayesian inference for psychological theories with intractable likelihood. This project pursues breakthroughs which allow important questions of basic and applied science to be addressed using mathematical theories from cognitive psychology. Advances are made through an interdisciplinary effort, combining recent developments in econometric and statistical methods and cognitive science. The outcomes will advance knowledge and open up new avenues for applied research in important aspects of psychology. This research will result in new methods available to the wider scientific community which open up new horizons for understanding basic cognition, and human behavior in many domains. Read moreRead less