Classification accuracy across multiple tests following item method directed forgetting

Phillip N. Goernert, Robert L. Widner, Hajime Otani

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We investigated recall of line-drawing pictures paired at study with an instruction either to remember (TBR items) or to forget (TBF items). Across three 7-minute tests, net recall (items reported independent of accuracy in instructional designation) and correctly classified recall (recall conditional on correct instructional designation) showed directed forgetting. That is, for both measures, recall of TBR items always exceeded recall of TBF items. Net recall for both item types increased across tests at comparable levels showing hypermnesia. However, across tests, correct classification of both item types decreased at comparable levels. Collectively, hypermnesia as measured by net recall is possible for items from multiple sets, but at the cost of accurate source information.

Original languageEnglish
Pages (from-to)1178-1186
Number of pages9
JournalQuarterly Journal of Experimental Psychology
Issue number9
StatePublished - Sep 2007


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