MouseTrace: a better mousetrap for catching decision processes.

This paper describes MouseTrace, a computer program designed to monitor the process by which people make decisions by presenting complex choice information to subjects in the form of an alternative-by-attribute matrix. MouseTrace is a Windows-based extension of another program called MouseLab; however, MouseTrace accommodates significantly more information and allows for multiple responses, as well as multiple decision stages. It is also easier to use for both subjects and experimenters and more sophisticated in terms of its features and the data it records. These data include what information was examined, when, and in what order. This information can be used to derive a variety of cognitive process measures, including those related to search depth, sequence, and content, which in turn can be used to provide unique insights into decision-making theory, individual differences, and a variety of decision variables.