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The standard test involves the recall period starting immediately after the final list item; this can be referred to as immediate free recall (IFR) to distinguish it from delayed free recall (DFR). In delayed free recall, there is a short distraction period between the final list item and the start of the recall period.
In cognitive psychology, a recall test is a test of memory of mind in which participants are presented with stimuli and then, after a delay, are asked to remember as many of the stimuli as possible. [ 1 ] : 123 Memory performance can be indicated by measuring the percentage of stimuli the participant was able to recall.
Free recall describes the process in which a person is given a list of items to remember and then is tested by being asked to recall them in any order. [6] Free recall often displays evidence of primacy and recency effects. Primacy effects are displayed when the person recalls items presented at the beginning of the list earlier and more often.
In a study, a free recall test was conducted on some lists of words and no test on other lists of words prior to a recognition test. They found that testing led to positive recency effects for remembered items; on the other hand, with no prior test, negative recency effects occurred for remembered items.
The viewer was to recall the letters in that corresponding row. On average, viewers were able to recall more during cued recall trials than free recall. Sperling built upon this experiment to then determine the amount of time before information was discarded from a person's memory.
Subjects were presented with four study-test periods of 10 word lists, with a continual distractor task (20-second period of counting-backward). At the end of each list, participants had to free-recall as many words as possible. After recall of the fourth list, participants were asked to recall items from all four lists.
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In the study of human memory, the contiguity effect has been found in studies of free recall. Analyses of free recall data indicates that there tends to be the greatest number of +/- 1 transitions between words, suggesting that a person is more likely to recall words together that are closer together in a list. [1]