Psychonomic Bulletin & Review

, Volume 14, Issue 5, pp 858–865 | Cite as

A direct test of the unequal-variance signal detection model of recognition memory

Brief Reports

Abstract

Analyses of the receiver operating characteristic (ROC) almost invariably suggest that, on a recognition memory test, the standard deviation of memory strengths associated with the lures (σlure) is smaller than that of the targets (σtarget). Often, σluretarget ≈ 0.80. However, that conclusion is based on a model that assumes that the memory strength distributions are Gaussian in form. In two experiments, we investigated this issue in a more direct way by asking subjects to simply rate the memory strengths of targets and lures using a 20-point or a 99-point strength scale. The results showed that the standard deviation of the ratings made to the targets (starget) was, indeed, larger than the standard deviation of the ratings made to the lures (slure). Moreover, across subjects, the ratioslure/starget correlated highly with the estimate of σlure/σtarget obtained from ROC analysis, and both estimates were, on average, approximately equal to 0.80.

References

  1. Coltheart, M. (1981). The MRC Psycholinguistic Database.Quarterly Journal of Experimental Psychology,33A, 497–505.Google Scholar
  2. Egan, J. P. (1958). Recognition memory and the operating characteristic (Tech. Note AFCRC-TN-58-51). Bloomington: Indiana University, Hearing and Communication Laboratory.Google Scholar
  3. Egan, J. P. (1975).Signal detection theory and ROC analysis. New York: Academic Press.Google Scholar
  4. Glanzer, M., Kim, K., Hilford, A., &Adams, J. K. (1999). Slope of the receiver-operating characteristic in recognition memory.Journal of Experimental Psychology: Learning, Memory, & Cognition,25, 500–513.CrossRefGoogle Scholar
  5. Macmillan, N. A., &Creelman, C. D. (2005).Detection theory: A user’s guide (2nd ed.). Mahwah, NJ: Erlbaum.Google Scholar
  6. Ratcliff, R., Sheu, C. F., &Gronlund, S. D. (1992). Testing global memory models using ROC curves.Psychological Review,99, 518–535.PubMedCrossRefGoogle Scholar
  7. Slotnick, S. D., &Dodson, C. S. (2005). Support for a continuous (single-process) model of recognition memory and source memory.Memory & Cognition,33, 151–170.CrossRefGoogle Scholar
  8. Wixted, J. T. (2007). Dual-process theory and signal-detection theory of recognition memory.Psychological Review,114, 152–176.PubMedCrossRefGoogle Scholar

Copyright information

© Psychonomic Society, Inc. 2007

Authors and Affiliations

  1. 1.Department of Psychology, 0109University of CaliforniaLa Jolla

Personalised recommendations