An item that stands out (is isolated) from its context is better remembered than an item consistent with the context. This isolation effect cannot be accounted for by increased attention, because it occurs when the isolated item is presented as the first item, or by impoverished memory of nonisolated items, because the isolated item is better…

Four possible mechanisms for short-term item recognition are distinguished. Manipulations of recency, particularly of negative probe items, provide critical tests. Two experiments were conducted using Sternberg's varied-set reaction time paradigm, coupled with procedures intended to minimize rehearsal and control the recency of probes and memory…

Multiple regression was used to examine the relationship between the serial position and the rated importance of a proposition in a text and the probability of its appearance in free recall protocols. Eight passages were used in the study--four from a standard social studies textbook and four written for the study. Each passage was divided into…