Goal pursuit decisions under environmental and social uncertainty. This project aims to develop an integrative computational model that explains how people prioritise the allocation of resources to different goals in the face of uncertainty. The project seeks to test a new theory through a series of experiments in which participants pursue goals by themselves in unpredictable environments, or in competition against an opponent. Expected outcomes include an integrated theory that accounts for the ....Goal pursuit decisions under environmental and social uncertainty. This project aims to develop an integrative computational model that explains how people prioritise the allocation of resources to different goals in the face of uncertainty. The project seeks to test a new theory through a series of experiments in which participants pursue goals by themselves in unpredictable environments, or in competition against an opponent. Expected outcomes include an integrated theory that accounts for the effects of both environmental and social uncertainty in the pursuit of multiple goals. Intended benefits include the development of computational models that can simulate human decision making in complex environments, analyse new concepts of operation, redesign work roles, and identify factors that reduce risk in decision-making.Read moreRead less
Using diagnostic tests in science as formative assessment to enhance teaching and learning. The success and continuation of science programs in upper secondary school and university is dependent on foundational improvements in science education in lower secondary schools. This proposal is designed to address this national concern by fostering talent in science and encouraging more students to study and enjoy science in a meaningful way. Through planned formative assessment, teachers will enable ....Using diagnostic tests in science as formative assessment to enhance teaching and learning. The success and continuation of science programs in upper secondary school and university is dependent on foundational improvements in science education in lower secondary schools. This proposal is designed to address this national concern by fostering talent in science and encouraging more students to study and enjoy science in a meaningful way. Through planned formative assessment, teachers will enable students in Years 8-10 to think about the science concepts and consider alternative explanations rather than memorise basic facts for a test or examination which are then forgotten. Practical benefits are a large range of valid and reliable tests and a range of teaching approaches for diagnosing student learning difficulties.Read moreRead less
Modelling human decision making in complex environments. The project aims to extend quantitative psychological models of simple choice tasks to decision-making with complex stimuli in complex environments. The new formal models are designed to provide a comprehensive account of behaviour, including the choices that are made, how long it takes to make them, and how choices and choice times vary within and between decision-makers. The models would explain how people adapt to changes in task demand ....Modelling human decision making in complex environments. The project aims to extend quantitative psychological models of simple choice tasks to decision-making with complex stimuli in complex environments. The new formal models are designed to provide a comprehensive account of behaviour, including the choices that are made, how long it takes to make them, and how choices and choice times vary within and between decision-makers. The models would explain how people adapt to changes in task demands when dealing with multiple stimuli or performing multiple tasks concurrently under time pressure. The project aims to provide the basic research that is needed to extend psychological models of choice to complex ‘real-world’ tasks, such air traffic control and maritime surveillance.Read moreRead less
Cognitive science: simulating the interactive evolution of human communication systems. We do not know how language first arose (the event left no trace), but it can be studied by simulating the circumstances under which new languages arise today. By having people play a game where they create new communication systems from scratch, this project will illuminate the origin of human language.
The Psychology of Misinformation—Towards A Theory-driven Understanding. The project aims to develop a psychological theory of misinformation effects. Misinformation influences people’s memory, reasoning and decision-making even after corrections – it thus poses a significant challenge for science and society. Through the combination of systematic experimentation with theory-driven computational modelling, the project will strive to concurrently consider individual-level cognition and the impact ....The Psychology of Misinformation—Towards A Theory-driven Understanding. The project aims to develop a psychological theory of misinformation effects. Misinformation influences people’s memory, reasoning and decision-making even after corrections – it thus poses a significant challenge for science and society. Through the combination of systematic experimentation with theory-driven computational modelling, the project will strive to concurrently consider individual-level cognition and the impact of sociocultural context. It is anticipated that this novel integrative approach will substantially expand our understanding of misinformation effects, and that this theoretical progress will result in the formulation of specific communication strategies to reduce the impact of misinformation on society.Read moreRead less
Developing a integrated memory-based model of evaluation and choice. People's judgements and choices are unstable. This project intends to examine one potential source of this instability: the memories that come to mind when people are evaluating choices. Many of the choices we make in our everyday lives are made on the basis of remembered information, and yet theories of evaluation and choice typically do not account for the role of memory, or provide only a cursory account of its role. In the ....Developing a integrated memory-based model of evaluation and choice. People's judgements and choices are unstable. This project intends to examine one potential source of this instability: the memories that come to mind when people are evaluating choices. Many of the choices we make in our everyday lives are made on the basis of remembered information, and yet theories of evaluation and choice typically do not account for the role of memory, or provide only a cursory account of its role. In the project, people will be presented with value information, and the project plans to examine how that information is retrieved from memory and then used to evaluate options and make decisions. Expected project outcomes would provide a coherent model that provides an integrated understanding of the role of memory in judgement and choice.Read moreRead less
A formal signal detection model of eyewitness identification. The project aims to aid in producing better procedures for the collection and assessment of eyewitness identification evidence. In a police line-up, a witness is asked to identify a perpetrator from a group of similar individuals. Applied research has focused on conditions that optimise witness performance but many of the conclusions from this research have been challenged on the basis that they use inappropriate measures of performan ....A formal signal detection model of eyewitness identification. The project aims to aid in producing better procedures for the collection and assessment of eyewitness identification evidence. In a police line-up, a witness is asked to identify a perpetrator from a group of similar individuals. Applied research has focused on conditions that optimise witness performance but many of the conclusions from this research have been challenged on the basis that they use inappropriate measures of performance. Recent work has highlighted the usefulness of analyses based on the theory of signal detection. However, the line-up task does not fit easily within standard signal detection paradigms as it combines two tasks; detection and identification. The project aims to understand how these components work in order to measure witness performance.Read moreRead less
Information seeking, cognition, and individual differences. The public now has access to vast amounts of scientific knowledge and information on the internet and in other new media. Paradoxically, this increasing availability of knowledge has been accompanied by the increasing traction of pseudoscientific misinformation. This project explores the reasons underlying those trends and seeks solutions.
Investigation of the component distributions of pause duration in spontaneous speech: Constraints for models of language production. We have discovered that the distribution of pause durations in spontaneous speech of individual speakers can be decomposed into at least two log-normal distributions. Our project will investigate this finding and provide a foundation for new research relevant to language production models. This will be achieved by determining the semantic, lexical, psycholinguistic ....Investigation of the component distributions of pause duration in spontaneous speech: Constraints for models of language production. We have discovered that the distribution of pause durations in spontaneous speech of individual speakers can be decomposed into at least two log-normal distributions. Our project will investigate this finding and provide a foundation for new research relevant to language production models. This will be achieved by determining the semantic, lexical, psycholinguistic, physiological, and acoustic concomitants of each component distribution and by investigating the impact of selected variables on the shape and location of each. The project has important implications for models of language production and applied problems involving automatic speech recognition, forensic speaker identification, and human communication disorders.Read moreRead less
From fluid intelligence to crystallised expertise: an integrative Bayesian approach. Intelligence is correlated with learning but uncorrelated with most aspects of expertise. Why is this so? Why does the role of intelligence diminish as one becomes more expert at a task? This project examines a broad range of cognitive tasks to provide a concise mathematical description of how intelligence relates to expertise.