Ian Spence (psychologist)
Ian Spence is a Canadian psychologist known for his research in psychometrics, mathematical psychology, and visual perception, particularly as it relates to the design and understanding of graphical displays. His work spans areas like multidimensional scaling, human judgment, and statistical graphics. Spence has contributed significantly to understanding how individuals perceive and interpret information presented visually, and how to design effective visualizations. His research often involves applying quantitative methods to understand cognitive processes involved in perception and decision making. He has published widely in leading journals in psychology, statistics, and information visualization.