Incorporating response bias in a dual-process theory of memory

We examined several different methods for incorporating response bias into a dual-process theory of recognition memory. Two high threshold correction methods, which have previously been applied to the process dissociation procedure, and a new, dual-process signal-detection method, were assessed. An examination of receiver operating characteristics (ROCs) showed that the threshold methods were inappropriate, but that the signal-detection method provided a reasonable account of the observed ROCs. Applying the corrections to a second data set showed that the different correction methods led to dramatically different conclusions, demonstrating that selecting the correct correction method is critical. Moreover, in agreement with the ROC analysis, the signal-detection method was the only one to provide a reasonable account of the data. (C) 1995 Academic Press, Inc.