Applications of Multidimensional Scaling in Cognitive Psychology

Cognitive psychology has used multidimensional scaling (and related procedures) in a wide variety of ways. This paper examines some straightforward ap plications, and also some applications where the ex planation of the cognitive process is derived rather di rectly from the solution obtained through multidimen sional scaling. Other applications examined include cognitive development, and the use of MDS to assess change as a function of context. Also examined is how an ideal representation is selected, whether, for example, a space or a tree is more appropriate. Fi nally, some inherent limitations of the method for cognitive psychologists are outlined, and some pitfalls and potential misapplications are identified.