Jessecae Marsh, Ph.D.

Assistant Professor of Psychology

Dr. Marsh joined Lehigh in 2011 as an assistant professor in the Psychology Department. She completed her Ph.D. in Cognitive Psychology at Yale University in 2008 and spent three years as an assistant professor at Texas Tech University before joining Lehigh’s faculty. Dr. Marsh’s research addresses how the beliefs that people hold influence the way they think about the world. She has investigated how people form hypotheses about the causal relationships between events and how these hypothesis can in turn influence how people learn about new causal relationships. She has explored how the causal beliefs people hold influence how they think about categories that exist in the world. Dr. Marsh has applied her research focus to looking at these questions in the health domain. For example, she has explored how professional mental health clinicians’ beliefs about mental disorder categories differ from laypeople’s beliefs about those same categories and how people react to expert physicians when they express ambivalence in making a medical categorization decision. Dr. Marsh has taught an undergraduate seminar through the Psychology Department entitled “Health Care Reasoning and Decision-Making."