Memory development in adolescence: Relationships between metamemory,strategy use,and performance

Eighth and tenth grade students were asked to study and recall a list of paired associates. The word pairs were available either throughout an 8 sec per word study period or only at the beginning and were composed of either high frequency or low frequency words. After recall, students were asked to indicate which of several study strategies they had used with each word pair (read pair carefully, rehearsal, visual elaboration, verbal elaboration). In addition, they were asked which of these strategies would have had the best effect on recall. Knowledge of appropriate memory strategies (metamemory) was positively related to strategy use, and strategy use was positively related to recall performance at both ages. Improved performance with materials available throughout study and with high frequency word pairs was explained by increased use of elaborative strategies. Age differences in performance were explained by increased strategy effectiveness. These results are discussed in relation to changing relationships among metamemory, strategy use, and performance with age.     

Are there developmental differences in reality-monitoring?

The question addressed by the present experiment is whether the ability to distinguish between veridical and imaginal memory representations changes with age. Second-grade, fourth-grade, and sixth grade children (8, 10, and 12 years old) and college students were shown pictures of familiar objects. Each picture was presented one, two, or three times and, interspersed with these presentations, subjects were asked to imagine each picture zero, one, or three times. Subsequently they were asked to judge the presentation frequency of each picture. For all groups, imagining the pictures resulted in inflated estimates of event frequency. However, contrary to the idea that children have a particularly difficult time discriminating externally generated from internally generated memories, one analysis indicated adults were actually somewhat more affected than children by the imagination trials.     

Developmental differences in recall: Encoding or retrieval?

First- and fifth-grade children and college adults (ages 6, 10, and 18 years, respectively) were presented a 30-item set of pictures to recall in a 4-trial study-test procedure. The stimuli were presented in one of three ways (encoding condition): randomly, blocked (according to categories), or sort (the subject was given the stimuli in random order and asked to sort them into categories). Recall was either free, cued, or constrained (retrieval condition). Results indicated that maximum adult recall was a function of the interaction of encoding and retrieval conditions, and that first- and fifth-grader's recall was influenced by retrieval conditions but not by encoding conditions. The blocked and sort encoding conditions did result in increased clustering relative to random encoding at all three ages, however. It was concluded that encoding conditions influence recall only as they effect the use of retrieval strategies.     

Partial pictures as imagery-retrieval cues in young children's prose recall.

Two experiments, involving first-grade children, were conducted to test a retrieval-inefficiency explanation for the failure of visual imagery to facilitate young children's prose recall. Consistent with this explanation, children who were given stimuli presumed to elicit visual imagery (“partial pictures”) both during the presentation of a story and at the time questions were asked about the story recalled more story content than children given the partial pictures only during story presentation. An alternative account of these findings—namely that they may be attributed to a general cueing effect—was ruled out in the second experiment. Cognitive-developmental aspects of visual imagery strategies in prosememory situations are discussed.     

Preschoolers' comprehension of goal structure in narratives

Preschool children's understanding and use of goals were studied in two experiments. Children heard stories in the presence of pictures or props. The stories were varied by goal success occurring early or late in the story, with late goal success resulting in more causal connections in the narrative. The results showed that children recalled goals spontaneously and that their recall benefited from goal structure of the stories. Pictures benefited the children when the stories were short. Enactment of the props versus static displays of the props did not enhance recall in the second experiment. Preschool children thus demonstrated ability to infer and use goal and causal information in stories for both picture and object support.     

Preschoolers' comprehension of goal structure in narratives

Preschool children's understanding and use of goals were studied in two experiments. Children heard stories in the presence of pictures or props. The stories were varied by goal success occurring early or late in the story, with late goal success resulting in more causal connections in the narrative. The results showed that children recalled goals spontaneously and that their recall benefited from goal structure of the stories. Pictures benefited the children when the stories were short. Enactment of the props versus static displays of the props did not enhance recall in the second experiment. Preschool children thus demonstrated ability to infer and use goal and causal information in stories for both picture and object support.     

The effect of orienting activity on memory for pictures and words in children and adults

Second and fifth grade children and adults were shown either pictures or words to study, and were tested with both pictures and words in a forced-choice recognition task. Prior to presentation of each study item, subjects were asked questions designed to orient them to the acoustic, schematic, or conceptual characteristics of the item, or were asked no questions at all (neutral condition). In addition, at recognition, each study item (target) was paired with a distractor related to the target either acoustically, schematically, conceptually, or not at all (neutral). The results show that deficits in the kinds of encoding operations performed are not responsible for developmental differences in memory performance, but suggest that young children differ from adults in terms of focused attention and direct access to semantic representations.     

Children's use of perceptual set

The effects of perceptual set and of “sequential visual noise” on the identification of briefly exposed pictures were examined in 5-year-olds, 8-year-olds, and adults. Subjects were asked to indicate whether a brief target matched a standard. The standard picture was presented either before the target picture (to establish a set) or after the target. The target was presented either alone or last in a series of six brief pictures (i.e., in noise). Adults and 8-year-olds were at ceiling when the target was presented alone, but set facilitated their identification of the target in noise. The 5-year-olds benefited from set both when the target was presented alone and when it was presented in noise. These findings suggest that set for a specific target picture functions similarly at all ages.     

The use of the cumulative rehearsal strategy: A developmental study

This study was designed to address two issues: (1) At what age do children spontaneously use a cumulative rehearsal strategy; and (2) What effect does the use of the strategy have on their performance?Twenty-eight children at each of five grade levels (nursery, kindergarten, 1, 3, and 5) were tested in a serial-position recall task. Stimuli were pictures of common objects and animals whose labels were one or two syllables in length. Following testing, the children were asked to report the memory strategy they had used.The assumption was made that children who were using a cumulative rehearsal strategy would perform better on series of one-syllable items than on series of two-syllable items. As predicted, nursery, kindergarten, and first-grade subjects correctly recalled as many two-syllable as one-syllable items: Both third- and fifth-graders recalled significantly more one-syllable than two-syllable items. Results indicated that (1) young children do not spontaneously use a cumulative rehearsal strategy until after first grade, and (2) the use of rehearsal did not facilitate overall performance of the rehearsers relative to the nonrehearsers at any grade level. Results are discussed in terms of their theoretical implications for the study of memory development.     

The effects of exemplary and cognitive models and self-rehearsal on children's interrogative strategies

Children aged 6, 8, and 10 years were exposed to three types of training procedures aimed at increasing their use of constraint-seeking questions and enhancing their problem-solving efficiency. One group observed an exemplary model who merely illustrated several constraint-seeking questions. Another group observed a cognitive model who, prior to asking each of her constraint-seeking questions, verbalized her strategy for formulating constraint-seeking questions and integrating the information gained from such questions. A third group received a combination of cognitive modeling and self-rehearsal training in which the children repeated statements representing key features of the constraint-seeking strategy before asking questions on a series of training items. Cognitive modeling alone was the most successful training procedure, effecting changes in both constraint-seeking questioning and problem-solving efficiency for children of all three age groups. Differences between cognitive and exemplary models were most notable among the youngest children, who appeared to require the additional guidance afforded through the verbalizations of the cognitive model.     

Do illustrations enhance preschoolers' memories for stories? Age-related change in the picture facilitation effect

This study investigated whether illustrations facilitate story recall in preschoolers (N=58) 46 to 63 months of age. Each child was exposed to either a verbal story narrative with illustrations (Verbal and Picture condition), the narrative alone (Verbal Only condition), the narrative with uninformative illustrations (Verbal and Irrelevant Picture condition), or the illustrations alone (Picture Only condition). Children recalled the story immediately and after a 1-week delay. With increasing age, the Verbal and Picture group increasingly outperformed the other verbal groups, particularly when recalling central details conveyed by both narrative and illustrations. Performance did not vary among the three verbal groups at lower values of age, whereas the Verbal and Picture group recalled more than the other verbal groups at the older ages. Regardless of age, all verbal groups outperformed the Picture Only group, suggesting that preschoolers are unlikely to spontaneously generate a narrative from pictures alone.     

Children's metacognition: Exploring relations among knowledge,process, and motivational variables

Following a metamemory pretest, 60 first and third grade children (6 and 8 years of age, respectively) were divided into three treatment groups which received task-specific strategy instructions appropriate for three memory problems, general metacognitive information about subordinate and superordinate processing, or both strategy and metacognitive training. Maintenance and generalization versions of the memory tasks were given, followed by an attributional assessment of children's perceptions of the causes for specific success and failure outcomes. Post-training scores on the memory tasks showed that strategy training was highly successful. Metacognitive training appeared to have no effect on the metameory or strategy scores with one exception: metamemory and strategy use on the generalization task were significantly correlated only for children who received both metacognitive and strategy training. Apparently, children who were initially high in metamemory skills profited more from the comprehensive training package, using new metacognitive insights to aid the generalization of acquired strategies to the transfer tasks. Among strategy-trained children those who attributed success to effort were both more strategic and higher in metamemory than those who attributed task outcomes to noncontrollable factors such as ability or task characteristics. Results were discussed in terms of the interactive nature of knowledge, process, and motivational variables as determinants of strategy transfer.     

Relationships between study organization, retrieval organization, and general and strategy-specific memory knowledge in young children

The present study examined relationships between young children's memory knowledge and their use of taxonomic and color memory organization. Forty-eight 5-, 6-, and 7-year-olds were administered metamemory tests of organization-strategy knowledge and general memory knowledge, and were tested on two study-recall tasks before, and two study-recall tasks after, training in the use of color or taxonomic organization. Study organization (grouping) scores were low before training, but improved significantly in post-training tasks. Training effects were less pronounced for retrieval organization (clustering) and did not occur for item recall. Relationships between taxonomic study and retrieval organization were apparent only for the 7-year-olds, while relationships between color organization at study and retrieval were not apparent at any age level. Relationships between metamemory, strategy-use, and recall proficiency were evident on some tasks for 7-year-olds, but not for younger children. Although teacher ratings of the children's mastery orientations were also found to be related to recall proficiency for the older subjects, specific strategy knowledge was a more consistent correlate of strategy use and amount recalled.     

Developmental relationships among metamemory,elaborative strategy use,and associative memory

Two experiments examined the relationships among metamemory knowledge, the use of associative memory strategies like elaboration, and cued-recall memory. In Experiment 1, 5th and 12th graders verbalized their strategies while studying noun pairs; their cued-recall memory of those pairs was then tested. Metamemory knowledge was assessed before or after this task. ANOVAs revealed developmental increases in associative strategies, cued recall, and metamemory. Multiple regression indicated the increase in associative strategies predicted all but 4% of the increase in cued recall; metamemory development in turn predicted all but 4% of the increase in associative strategies. Metamemory was a better predictor than a nonverbal measure of intelligence. The strong relationships were due partly to methodological refinements, including a counterbalanced design, a direct strategy measure, a reliable composite rather than single-item metamemory measure, ordinal rather than dichotomous scoring of metamemory items, and regression rather than χ² analyses. The results of Experiment 1 were replicated in Experiment 2. Metamemory development also predicted most of the grade difference in cued recall that remained after study strategies were equated by elaboration instructions, suggesting it may explain improvements in retrieval strategies as well.     

Developmental differences in schema dependency for temporally ordered story events

This research project was undertaken to investigate whether temporally ordered story events would be recalled in logical sequence as opposed to presentation order by various ages and under various task conditions. A 24-hour delayed condition was used as well as immediate recall. Six-year-olds, 8-year-olds, and adults were asked to recall four narratives. Instructions given were either vague or specifically required subjects to recall events exactly as they had been presented. Following the delayed recall, a picture-sequencing task was adminstered to assess whether picture cues would enable subjects to demonstrate awareness of input order even though they had reordered events in recall. All subjects reordered more during the delayed recall than during the immediate recall. Age differences (p<0003) occurred in the ability of subjects to demonstrate verbatim memory on the picture-sequencing task. Findings suggest that in contrast to adults, once children have reordered narrative events in memory, they no longer have an alternative verbatim version available. Results also suggest a greater schema dependency in children than in adults in recall tasks.     

Is the picture bizarreness effect a generation effect?

Bizarre stimuli usually facilitate recall compared to common stimuli. This investigation explored the so-called bizarreness effect in free recall by using 80 simple line drawings of common objects (common vs bizarre). 64 subjects participated with 16 subjects in each group. Half of the subjects received learning instructions and the other half rated the bizarreness of each drawing. Moreover, drawings were presented either alone or with the name of the object under mixed-list encoding conditions. After the free recall task, subjects had to make metamemory judgments about how many items of each format they had seen and recalled. The key result was that a superiority of bizarre pictures over common ones was found in all conditions although performance was better when the pictures were presented alone than with their corresponding label. Subsequent metamemory judgments, however, showed that subjects underestimated the number of bizarre items actually recalled.     

Cognitive impenetrability of memory for orientation

This research produced evidence that an aspect of visual long-term memory--memory for lateral orientation of pictures--is constrained by a viewer-centered or egocentric reference frame. Subjects in Experiment 1 verbally encoded and then verbally recalled the locations of objects within scenic pictures. Recall of locations in terms of left-right directions (using a viewer-centered frame) exceeded recall of locations in terms of relative proximities to features of the room (using an environmental frame), even if the relative proximities had been verbalized at input. Subjects in Experiment 2 viewed half of a list of pictures directly and the remainder, reflected in a mirror. They then took a test in which they classified old pictures--all viewed directly--as "same-orientation" or "reversed". Performance was much better with a viewer-centered definition of same orientation (Does the picture appear the same way around?) than with an environmental definition (Is the picture the same way around on the screen?), even with forewarning of an environmental orientation test.     

超常与普通儿童元记忆知识发展的实验研究

本研究主要探讨超常儿童与普通儿童早期元记忆知识的发展。运用对偶图片对被试的个体变量、项目变量、过程变量、策略变量、遗忘与回忆变量知识分别进行了考察。结果表明,5—7岁儿童是元记忆知识快速发展的时期,每一年龄组儿童的元记忆知识总体水平都显著地高于低一年龄组的儿童;超常儿童的元记忆知识水平均与高一年龄组的普通儿童基本相同,与超常儿童发展的单一优势模式相吻合。