Despite the necessity of the decision to terminate memory search in many real-world memory tasks, little experimental work has investigated the underlying processes. In this study, the authors investigated termination decisions in free recall by providing participants an open-ended retrieval interval and requiring them to press a stop button when they had finished retrieving. Three variables important to assessing one's willingness to search memory were examined: (a) the time spent searching memory after the last successful retrieval before choosing to quit (the exit latency); (b) task difficulty; and (c) individual differences in motivation, as measured by Webster and Kruglanski's (1994) Need for Closure Scale. A strong negative correlation was found between individual differences in motivation and participants' exit latencies. This negative correlation was present only when the retrieval task started out as relatively difficult.Keywords: recall, memory retrieval, exit latency, stopping rules A fundamental component of memory retrieval is the decision to terminate search. This decision process characterizes many realworld memory retrieval tasks, from the generation of clinical diagnoses by physicians to the recollection of items from a grocery list left at home. Despite the necessity of the decision to terminate memory search in virtually all real-world tasks, little experimental work has investigated the underlying processes.Related to the issue of search termination is the question of what psychological factors affect one's willingness to continue to search memory. Some factors are anticipated by models of memory, such as the use of familiarity in paired-associate retrieval (Diller, Nobel, & Shiffrin, 2001) or feelings of knowing when searching for a question's answer (Barnes, Nelson, Dunlosky, Mazzoni, & Narens, 1999;Costermans, Lories, & Ansay, 1992;Nelson, Gerler, & Narens, 1984;Young, 2004). However, other variables likely are important, too. For example, you presumably would search memory longer for a relatively important task, such as retrieving your grandmother's medications upon admitting her for emergency care. In contrast, search might be truncated relatively quickly for a comparatively unimportant task, such as recollecting movies you recently watched to provide a recommendation for a friend. Variables such as the importance of the retrieval task and idiographic levels of motivation likely serve as important moderators in the process of determining the amount of time one is willing to search memory.In this article, we ask how long people will continue going back to the well (i.e., memory) when the well is dry (i.e., when retrieval has been unsuccessful). In addressing this question, we examined three variables important to assessing one's willingness to search memory: (a) the time spent searching memory after the last successful retrieval before choosing to quit; (b) task difficulty; and (c) individual differences in motivation, as measured by Webster and Kruglanski's (1994) Need for Closure (NFC) ...