Differential effects of list strength on recollection and familiarity.
Numerous studies have found a null list strength effect (LSE) for recognition sensitivity: Strengthening memory traces associated with some studied items does not impair recognition of nonstrengthened studied items. In Experiment 1, the author found a LSE using receiver operating characteristic-based measures of recognition sensitivity. To account for the discrepancy between this and prior research, the author (a) argues that a LSE occurs for recollection but not for discrimination based on familiarity, and (b) presents self-report data consistent with this hypothesis. Experiment 2 tested the dual-process hypothesis more directly, using switched-plurality (SP) lures to isolate the contribution of recollection. There was a significant LSE for comparisons involving SP lures; the LSE for discrimination of studied items and nominally unrelated lures (which can be supported by familiarity) was not significant.
Norman
Kenneth A
KA
Department of Psychology, University of Colorado at Boulder, USA. knorman@princeton.edu
D000293:Adolescent; D000328:Adult; D001288:Attention; D005260:Female; D006801:Humans; D008297:Male; D008962:Models, Theoretical; D012372:ROC Curve; D011932:Reading; D014706:Verbal Learning