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While there exist a number of papers describing the theory of signal detection, it appears that many psychologists are not aware of the ease with which signal detection theory can be applied, the range of applications possible, or the limitations of signal detection theory. This paper briefly summarizes the assumptions of signal detection theory and describes the procedures, the limitations, and practical considerations relevant to its application. A worked example of an application of signal detection theory to the study of cognitive processes is included.
Pastore et al. (1974) studied this question.