Abstract
A latent variable analysis was conducted to examine the nature of individual differences in the dynamics of free recall and cognitive abilities. Participants performed multiple measures of free recall, working memory capacity (WMC), and fluid intelligence (gF). For each free recall task, recall accuracy, recall latency, and number of intrusion errors were determined, and latent factors were derived for each. It was found that recall accuracy was negatively related to both recall latency and number of intrusions, and recall latency and number of intrusions were positively related. Furthermore, latent WMC and gF factors were positively related to recall accuracy, but negatively related to recall latency and number of intrusions. Finally, a cluster analysis revealed that subgroups of participants with deficits in focusing the search had deficits in recovering degraded representations or deficits in monitoring the products of retrieval. The results are consistent with the idea that variation in the dynamics of free recall, WMC, and gF are primarily due to differences in search set size, but differences in recovery and monitoring are also important.
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Beier, M. E., & Ackerman, P. L. (2004). A reappraisal of the relationship between span memory and intelligence via “best evidence synthesis”. Intelligence, 32, 607–619.
Berger, F. R., Gupta, W. B., Berger, R. M., & Skinner, J. (1990). Air Force officer qualifying test (AFOQT) Form P: Test manual (AFHRL—TR-89-56). Brooks Air Force Base, TX: Manpower and Personnel Research Division, Air Force Human Resources Laboratory.
Bors, D. A., & Forrin, B. (1995). Age, speed of information processing, recall, and fluid intelligence. Intelligence, 20, 229–248.
Bousfield, W. A., Sedgewick, C. H. W., & Cohen, B. H. (1954). Certain temporal characteristics of the recall of verbal associates. American Journal of Psychology, 67, 111–118.
Cantor, J., & Engle, R. W. (1993). Working memory capacity as longterm memory activation: An individual differences approach. Journal of Experimental Psychology: Learning, Memory, & Cognition, 19, 1101–1114.
Carroll, J. B. (1993). Human cognitive abilities: A survey of factor-analytic studies. New York: Cambridge University Press.
Chuah, Y. M. L., & Maybery, M. T. (1999). Verbal and spatial short-term memory: Common sources of developmental change? Journal of Experimental Child Psychology, 73, 7–44.
Conway, A. R. A., Kane, M. J., Bunting, M. F., Hambrick, D. Z., Wilhelm, O., & Engle, R. W. (2005). Working memory span tasks: A methodological review and user’s guide. Psychonomic Bulletin & Review, 12, 769–786.
Craik, F. I. M. (1968). Types of error in free recall. Psychonomic Science, 10, 353–354.
Crowder, R. G. (1976). Principles of learning and memory. Hillsdale, NJ: Erlbaum.
Engle, R. W., Tuholski, S. W., Laughlin, J. E., & Conway, A. R. A. (1999). Working memory, short-term memory, and general fluid intelligence: A latent-variable approach. Journal of Experimental Psychology: General, 128, 309–331.
Everitt, B. S., Landau, S., & Leese, M. (2001). Cluster analysis. London: Arnold.
Johnson, D. M., Johnson, R. C., & Mark, A. L. (1951). A mathematical analysis of verbal fluency. Journal of General Psychology, 44, 121–128.
Just, M. A., & Carpenter, P. A. (1992). A capacity theory of comprehension: Individual differences in working memory. Psychological Review, 99, 122–149.
Kane, M. J., Hambrick, D. Z., Tuholski, S. W., Wilhelm, O., Payne, T. W., & Engle, R. W. (2004). The generality of working-memory capacity: A latent-variable approach to verbal and visuo-spatial memory span and reasoning. Journal of Experimental Psychology: General, 133, 189–217.
Kaplan, I. T., Carvellas, T., & Metlay, W. (1969). Searching for words in letter sets of varying size. Journal of Experimental Psychology, 82, 377–380.
Kaufman, L., & Rousseeuw, P. J. (1990). Finding groups in data: An introduction to cluster analysis. New York: Wiley.
Kline, R. B. (1998). Principles and practice of structural equation modeling. New York: Guilford.
MacLeod, C. M., & Nelson, T. O. (1984). Response latency and response accuracy as measures of memory. Acta Psychologica, 57, 215–235.
McGill, W. J. (1963). Stochastic latency mechanism. In R. D. Luce, R. R. Bush, & E. Galanter (Eds.), Handbook of mathematical psychology (Vol. 1, pp. 309–360). New York: Wiley.
Murdock, B. B. (1974).Human memory: Theory and data. Potomac, MD: Erlbaum.
Preacher, K. J., Rucker, D. D., MacCallum, R. C., & Nicewander, W. A. (2005). Use of extreme groups approach: A critical reexamination and new recommendations. Psychological Methods, 10, 178–192.
Raaijmakers, J. G. W., & Shiffrin, R. M. (1980). SAM: A theory of probabilistic search of associative memory. In G. H. Bower (Ed.), The psychology of learning and motivation (Vol. 14, pp. 207–262). New York: Academic Press.
Raaijmakers, J. G. W., & Shiffrin, R. M. (1992). Models for recall and recognition. Annual Review of Psychology, 43, 205–234.
Raven, J. C., Raven, J. E., & Court, J. H. (1998). Progressive matrices. Oxford: Oxford Psychologists Press.
Rohrer, D. (1996). On the relative and absolute strength of a memory trace. Memory & Cognition, 24, 188–201.
Rohrer, D., Salmon, D. P., Wixted, J. T., & Paulsen, J. S. (1999). The disparate effects of Alzheimer’s disease and Huntington’s disease on semantic memory. Neuropsychology, 13, 381–388.
Rohrer, D., & Wixted, J. T. (1994). An analysis of latency and inter-response time in free recall. Memory & Cognition, 22, 511–524.
Scheirer, C. J. (1971). Effect of cueing, modality, and effective contiguous time on response latency in short-term memory. Journal of Experimental Psychology, 88, 429–432.
Shiffrin, R. M. (1970a). Forgetting: Trace erosion or retrieval failure? Science, 168, 1601–1603.
Shiffrin, R. M. (1970b). Memory search. In D. A. Norman (Ed.), Models of human memory (pp. 375–447). New York: Academic Press.
Thurstone, T. G. (1962). Primary mental abilities. Chicago: Science Research Associates.
Tulving, E. (1968). Theoretical issues in free recall. In T. R. Dixon & D. L. Horton (Eds.), Verbal behavior and general behavior theory (pp. 2–36). Englewood Cliffs, NJ: Prentice Hall.
Unsworth, N. (2007). Individual differences in working memory capacity and episodic retrieval: Examining the dynamics of delayed and continuous distractor free recall. Journal of Experimental Psychology: Learning, Memory, & Cognition, 33, 1020–1034.
Unsworth, N. (2008). Exploring the retrieval dynamics of delayed and final free recall: Further evidence for temporal-contextual search. Journal of Memory & Language, 59, 223–236.
Unsworth, N. (2009). Examining variation in working memory capacity and retrieval in cued recall. Memory, 17, 386–396.
Unsworth, N., & Engle, R. W. (2007). The nature of individual differences in working memory capacity: Active maintenance in primary memory and controlled search from secondary memory. Psychological Review, 114, 104–132.
Unsworth, N., Heitz, R. P., Schrock, J. C., & Engle, R. W. (2005). An automated version of the operation span task. Behavior Research Methods, 37, 498–505.
Vogel, E. K., McCollough, A. W., & Machizawa, M. G. (2005). Neural measures reveal individual differences in controlling access to visual working memory. Nature, 438, 500–503.
Ward, G., & Tan, L. (2004). The effect of the length of to-be-remembered lists and intervening lists on free recall: A re-examination using overt rehearsal. Journal of Experimental Psychology: Learning, Memory, & Cognition, 30, 1196–1210.
Wingfield, A., Lindfield, K. C., & Kahana, M. J. (1998). Adult age differences in the temporal characteristics of category free recall. Psychology & Aging, 13, 256–266.
Wixted, J. T., & Rohrer, D. (1993). Proactive interference and the dynamics of free recall. Journal of Experimental Psychology: Learning, Memory, & Cognition, 19, 1024–1039.
Wixted, J. T., & Rohrer, D. (1994). Analyzing the dynamics of free recall: An integrative review of the empirical literature. Psychonomic Bulletin & Review, 1, 89–106.
Zaromb, F. M., Howard, M. W., Dolan, E. D., Sirotin, Y. B., Tully, M., Wingfield, A., & Kahana, M. J. (2006). Temporal associations and prior-list intrusions in free recall. Journal of Experimental Psychology: Learning, Memory, & Cognition, 32, 792–804.
Zhang, T., Ramakrishnan, R., & Livny, M. (1996). BIRCH: An efficient data clustering method for very large databases. In Proceedings of the ACM SIGMOD Conference on Management of Data. Montreal: ACM.
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Unsworth, N. Variation in working memory capacity, fluid intelligence, and episodic recall: A latent variable examination of differences in the dynamics of free recall. Memory & Cognition 37, 837–849 (2009). https://doi.org/10.3758/MC.37.6.837
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DOI: https://doi.org/10.3758/MC.37.6.837