Visual expertise covers a broad range of types of studies and methodologies. Many studies incorporate some measure(s) of observer performance or how well participants perform on a given task. Receiver Operating Characteristic (ROC) analysis is a method commonly used in signal detection tasks (i.e., those in which the observer must decide whether…

This report describes an interactive video program designed to help college biology students with their abilities to visually discriminate between instructional images, and to think critically about those images. A brief discussion of interactive video technology is provided, including details about videodisks, CD-ROM databases, computer software,…