Serial organization and prior free recall.

Assessed serial recall and organization of a list after different levels of prior free-recall learning with the same list. Performance was expected to be impaired as a direct function of amount of free recall because of inappropriate organizational units formed during free recall. Recall on serial trials following 15 free-recall trials was inferior to 5 or 10 prior free-recall trials. 4 groups of 24 Ss each were tested. Serial organization on the 1st serial trial was inferior if prior free recall occurred, but did not vary with the amount of free recall. These results, and those of part-whole and whole-part free-recall transfer studies, were interpreted by a component analysis of free recall, including response learning/unlearning and organizational learning/unlearning. (16 ref.) (French summary) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Clustering and organization in free recall.

Evaluated various indexes developed to measure clustering and subjective organization and presents 2 intercorrelation matrices among clustering measures and the number of words recalled. The existence of a large negative bias in the correlation between the ratio of repetition measure and theoretical recall was demonstrated. Various issues which have developed from the study of organization in free recall are discussed. (3 p. ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mnemonic organization and free recall in schizophrenia.

Investigated word-storage structure and processes of organization and retrieval in 17 young schizophrenics (mean age 26.5 yrs) and 13 normal Ss (mean age 25.7 yrs). Ss were required to establish a stable organization of 25 unrelated words through repeated, self-paced sortings into self-determined categories. Subsequently, they were asked for free recall of the words. The schizophrenics required significantly more trials to complete the sorting task, but once this was achieved they recalled as many words in equally regular order as the normals did. The groups did not differ in regard to organizational structure in the sortings as assessed by hierarchical structure analysis. It is concluded that a schizophrenic deficit of mnemonic organization is indicated, possibly due to difficulties in maintaining a stable system of categories. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Age differences in free recall and subjective organization.

Previous studies concerned with subjective organization occurring during free-recall learning have not provided consistent evidence for a hypothesis of organizational deficiency in the elderly. To assess the role of recall conditions in this discrepancy, the free-recall learning of younger and older adults was examined under conditions where the recalled words were either visible or not visible. Also, 5 measures of subjective organization, including measures used in earlier studies, were used to assess the role of measurement factors in producing the inconsistent findings. Younger adults, regardless of recall condition, recalled more words and showed more subjective organization than did the older adults with each of the measures. List length, rather than type of recall trial or measure of subjective organization, seems to be responsible for the conflicting findings obtained by other investigators. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The measurement of subjective organization in free recall.

Presents and discusses alternative measures of subjective organization. Various criteria for choosing among measures are compared, and 4 psychometric criteria are proposed: quantification, reliability, construct validity, and empirical validity. It is demonstrated that with respect to these criteria, the bidirectional form of intertrial repetition, here referred to as pair frequency, is the last measure of subjective organization now available. (37 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Unmixing effects of spacing on free recall.

In 3 unmixed-list free-recall experiments, total recall was as high for lists that contained massed repetitions as for those containing spaced repetitions. This finding and differences between spaced and massed lists in the pattern of recall (notably serial position differences) indicate that displaced rehearsal (review of earlier list items) was more prevalent during study of the massed lists. These results imply that displaced rehearsal has a large role in producing the free-recall advantage typically observed for spaced compared with massed items in mixed lists and that unmixed-list designs generally are to be preferred for spacing experiments. They also imply that intentional free-recall experiments are not instructive concerning effects of spaced vs massed study, because rehearsal strategies for free recall result in the spaced study of massed items. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sources of recency effects in free recall.

Discusses evidence casting doubt on the primary-memory account of the recency effect in recall and reviews an alternate account that attributes recency to the use of temporal or contextual cues. The discussion is presented in the paradigm of free recall. The recency effect refers to the fact that when people memorize a list of words, they tend to recall items at the end of the list more often than those in the middle. Recency effects have often been attributed to output from primary memory, a short-term memory buffer system. Evidence that recency effects can be found in the absence of primary memory (in conditions of concurrent distraction, multicategory lists, interactions of other independent variables with serial position, negative recency effects, and auditory recency) is reviewed. It is concluded that primary-memory theories are no longer adequate accounts for the recency effect. A temporal-contextual theory of the recency effect is discussed as a plausible alternative account, although these accounts are not fully developed or tested. (108 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Developmental and population comparisons of taxonomic and thematic organization in free recall.

Assessed taxonomic and thematic clustering in free recall in 240 7- and 10-yr-olds from Black and White and low- and middle-SES backgrounds. Materials were pictures that were cross classifiable by taxonomic and thematic categories. A free study condition, in which Ss studied the pictures any way they wished, tested the hypothesis that taxonomic clustering would increase with age and thematic clustering would decrease with age. This condition also tested A. R. Jensen's (see record 1969-09740-001) prediction of population differences in clustering and recall. Two conditions were also included that determined whether constraining Ss to sort taxonomically or thematically during the study period would raise recall and clustering. Results for the free study condition indicate that recall and taxonomic clustering increased with age but thematic clustering was low for both ages. This pattern of performance did not vary with ethnicity or SES. The constrained taxonomic condition raised taxonomic clustering for all children but had no effect on recall for either age group. The constrained thematic condition generally raised thematic clustering for all Ss, but the beneficial effect of the constrained thematic condition on recall was limited to the 10-yr-olds. (26 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Contextual variability and serial position effects in free recall.

In immediate free recall, words recalled successively tend to come from nearby serial positions. M. J. Kahana (see record 1996-93836-009) documented this effect and showed that this tendency, which the authors refer to as the lag recency effect, is well described by a variant of the search of associative memory (SAM) model (J. G. W. Raaijmakers & R. M. Shiffrin, 1980, 1981). In 2 experiments, participants performed immediate, delayed, and continuous distractor free recall under conditions designed to minimize rehearsal. The lag recency effect, previously observed in immediate free recall, was also observed in delayed and continuous distractor free recall. Although two-store memory models, such as SAM, readily account for the end-of-list recency effect in immediate free recall, and its attenuation in delayed free recall, these models fail to account for the long-term recency effect. By means of analytic simulations, the authors show that both the end of list recency effect and the lag recency effect, across all distractor conditions, can be explained by a single-store model in which context, retrieved with each recalled item, serves as a cue for subsequent recalls. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Combined effect of goal organization and test expectations on organization in free recall following learning from text.

24 high school students read a 10-page passage with a list of learning goals available that was organized either by topic or attribute. Prior to reading they were trained to expect (a) a completion test, given a topical organization of the goals list; or (b) a sorting test, given an attribute organization of goals list. After reading, Ss took a free-recall test. Results indicate that the combination of topic goals and an expectation for a completion test produced topical organization in free recall, while the combination of attribute goals and an expectation for a sorting test produced attribute organization in free recall. The practical implications for the use of goals to produce organizational effects is emphasized. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Age dissociates recency and lag recency effects in free recall.

The temporal relations among word-list items exert a powerful influence on episodic memory retrieval. Two experiments were conducted with younger and older adults in which the age-related recall deficit was examined by using a decomposition method to the serial position curve, partitioning performance into (a) the probability of first recall, illustrating the recency effect, and (b) the conditional response probability, illustrating the lag recency effect (M. W. Howard & M. J. Kahana, 1999). Although the older adults initiated recall in the same manner in both immediate and delayed free recall, temporal proximity of study items (contiguity) exerted a much weaker influence on recall transitions in older adults. This finding suggests that an associative deficit may be an important contributor to older adults' well-known impairment in free recall. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Word sequence, word frequency, and free recall.

3 groups of 22 undergraduates each were asked to memorize lists of either (a) all common words, (b) all rare words, or (c) a mixed list of alternating common and rare words. In terms of trials to criterion in free recall the groups were rank ordered rare > common > mixed. The typical high-frequency easier-recall effect was reversed in the mixed list where rare words were recalled more efficiently than common words. (French summary) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effects of subject-generated and experimenter-provided memory tags on free recall.

64 children from Grades 2 and 5 participated in a recall task. There were 4 instructional conditions distinguished by the type of retrieval cue: sign, subcategory, supracategory, and control. The task required that the Ss image and recall items from 6 successively presented sets of categorized pictorial stimuli. These categories, however, were not mentioned; instead, a sign representing an activity for each set was emphasized as the retrieval cue. Significant effects of grade and of condition, favoring the subcategory condition, were determined by ANOVA. The results, based upon total recall as well as items-per-category and category recall, are discussed in relation to E. Tulving and M. J. Watkins's (see record 1975-26816-001) encoding specificity principle, A. Paivio's (1971) 2-process theory of memory, and F. I. Craik and R. S. Lockhart's (see record 1973-20189-001) levels-of-processing approach to memory. (19 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On sense and nonsense in measuring organization in free recall: Oops, pardon me, my assumptions are showing.

Discusses the importance of being aware of the assumptions which must be made when applying statistical models or methods to the measurement of psychological phenomena. An example is presented of how different investigators were led to substantially different conclusions as a result of making different assumptions, sometimes without explicitly stating them, about the variables involved in measuring clustering in free recall. It is emphasized that there is no single "best" measure of organization, that the individual investigator needs to be aware of the assumptions underlying the measure he is using, and that the application of statistical models to the measurement of psychological problems needs to be guided by some consideration of the psychometric adequacy of the measures being used and a theoretical rationale for judging the appropriateness of the assumptions involved. (19 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Using overt rehearsals to explain word frequency effects in free recall.

Three experiments examined the word frequency effect in free recall using the overt rehearsal methodology. Experiment 1 showed that lists of exclusively high-frequency (HF) words were better recalled, were rehearsed more, and were rehearsed to more recent serial positions than low-frequency (LF) words. A small HF advantage remained even when these 2 variables were equated. Experiment 2 showed that all these effect, were much reduced with mixed lists containing both HF and LF words. Experiment 3 compared pure and mixed lists in a within-subject design and confirmed the findings of Experiments 1 and 2. It is argued that number of rehearsals, recency of rehearsals, and strength of interitem association cause the word frequency effect in free recall. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reverse-interference effect in free recall.

D. J. Burns (1989) demonstrated that free recall of second-list response terms was better in an interference (A–B, A–C) condition than in a control (D–B, A–C) condition. This reversal of the traditional interference effect was referred to as the reverse-interference effect. Results from Experiments 2–4 in this article discounted several possible explanations of the reverse-interference effect, and the results from Experiments 5–7 supported a stimulus accessibility account of the reverse-interference effect. That is, when asked for free recall of the response terms, participants covertly retrieved stimulus terms to serve as cues for the responses. The reverse-interference effect reflects the greater accessibility of stimulus terms in the interference condition than in the control condition (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Memory organization during children's repeated recall.

Presented a list of categorically related words to 20 2nd graders and 20 6th graders in a memory test. Multiple recall tests followed the initial presentation of words so that changes in memory organization could be assessed over recall attempts. Ss in both grades remembered many new words on later recall trials that they had not remembered on Trial 1. The proportions of new words recalled and the retrieval characteristics of these words were similar in both grades. Younger Ss, however, forgot many words during repeated recall, and older Ss did not. Different patterns of forgetting were correlated with different types of organizational strategies. Second graders recalled words in a sequential, rote manner with few transformations or rearrangements of words. Sixth graders, on the other hand, actively constructed larger categories or chunks of words over recall attempts. The spontaneous reconstruction of remembered information by 6th graders is interpreted as a manifestation of constructive memory-monitoring skills. Some potential advantages of a repeated recall paradigm for developmental research are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Examining the relationship between free recall and immediate serial recall: The effects of list length and output order.

In 4 experiments, participants were presented with lists of between 1 and 15 words for tests of immediate memory. For all tasks, participants tended to initiate recall with the first word on the list for short lists. As the list length was increased, so there was a decreased tendency to start with the first list item; and, when free to do so, participants showed an increased tendency to start with one of the last 4 list items. In all tasks, the start position strongly influenced the shape of the resultant serial position curves: When recall started at Serial Position 1, elevated recall of early list items was observed; when recall started toward the end of the list, there were extended recency effects. These results occurred under immediate free recall (IFR) and different variants of immediate serial recall (ISR) and reconstruction of order (RoO) tasks. We argue that these findings have implications for the relationship between IFR and ISR and between rehearsal and recall. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Concreteness and semantic repetition effects in free recall: Evidence for dual-coding theory.

Tested the prediction of A. Paivio's (1971, 1976) dual-coding model, which states that semantic-repetition effects will be obtained for concrete but not abstract words. Dual-coding theory also asserts that semantic equivalents are encoded as a combination of separate verbal representations for all words and common imaginal representations for concrete equivalents. 96 undergraduates recalled a list that contained no-repetition, synonym-repetition, and identical-repetition items, half of which were concrete and half of which were abstract. Results show that, for concrete words, recall of synonym- and identical-repetition items did not differ significantly, and both conditions facilitated recall relative to no-repetition items. For abstract words, however, recall of synonym- and no-repetition items did not differ significantly, whereas identical-repetition items facilitated recall relative to both of these conditions. Findings support the prediction and demonstrate the importance of concreteness in semantic-repetition effects. (French abstract) (27 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stimulus context effects, associative strength, and word frequency as determiners of free recall in paired-associate learning.

Two levels of response word frequency and three levels of associative strength of paired-associates were used to form six lists. One level of low associative strength between pairs to be learned was created by re-pairing stimuli and responses from high associative strength lists. Both the high associative strength condition and the re-paired condition produced superior recall of response items. Results suggested that the development of response availability in paired-associate learning depends in part not only upon the strength of the initial relationship between each stimulus and response pair to be learned, but also upon the context provided by other stimuli in the list. The meaning of "present at input" in studies evaluating the principle of encoding specificity (Tulving & Thompson, 1973) was questioned. (PsycINFO Database Record (c) 2010 APA, all rights reserved)