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The JDSC Lab is directed by Professor Paul Windschitl and includes graduate and undergraduate students from the U of I's Department of Psychological & Brain Sciences. We investigate how people form judgments and beliefs, as well as how these shape decisions and behaviors. The types of judgments and beliefs we study could be about almost anything, but we have a particular interest in how people think about things that involve uncertainty—e.g., your team’s chance of success, the threat of a storm or a pandemic, the risks and benefits of a medical treatment, the validity of a claim, or your own confidence in your skills. Many of our studies focus on biases, their causes, and how they can be avoided. And often, our research involves the context of health-relevant decisions, but applications of our work extend to other domains as well. Please look around our website to learn more about who we are and what we do!