Retrieval of repeated items embedded in changing lists

Randomly assigned 80 undergraduates to 3 experimental and 1 control group of 20 Ss each. A set of target words from the same category, embedded in lists also containing other items, was repeated across all trials for free recall of all items presented on each trial. Retrieval of the repeated items from long-term storage was less when other items, from a different category, were new on each trial rather than also repeated across trials; retrieval was still less when the other new items were from the same category as the repeated items. Long-term storage of the items in the repeated set was equivalent in all 3 conditions, confirming that retrieval of items within a list from long-term storage is affected by the context provided by the rest of the list. (PsycINFO Database Record (c) 2006 APA, all rights reserved).