Professor Toplak’s research is on judgment, decision-making and rational thinking, including their associations with individual differences in cognitive abilities and performance-based measures of executive function. Most recently, she has published a book entitled: Cognitive sophistication and the development of judgment and decision-making. This book integrates her research from a 9 year longitudinal study on the developmental trajectories of these competencies. Her research has been informed by using participants across the lifespan and with special populations, including youth with ADHD, young offenders and pathological gamblers.

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