Technical Report #171

A Model For Accuracy and Response Time in Cued Recall

Peter A. Nobel and Richard M. Shiffrin

Abstract

The present article is the second in a series of three that use both response time and accuracy to explore the processes of recognition and cued recall, and the relation between these. The focus in this article is on the recall results from a study described in detail in Nobel and Shiffrin (submitted, a), using both free response and signal-to-respond procedures while varying list length and list strength. The length and strength manipulations had a large effect on accuracy, but only a small effect on free response RT distributions and retrieval dynamics in signal-to-respond, providing strong constraints for modeling. The free response and signal-to-respond data were well fit with a sequential search model based on the SAM model for cued recall (Raaijmakers & Shiffrin, 1980, 1981).