The Effects of Retention Tests upon Human Learning and Memory: an historical review and an experimental analysis

Abstract Whether and how the administration of one retention test affects performance in a subsequent test on the same material is a question of practical and theoretical interest to educationalists and psychologists. Previous research suggests a number of conclusions which generalise across both materials and procedures. A systematic investigation is described concerning the recognition and free recall of long lists of unrelated words. Finally, a model of recognition and recall is presented which claims that both tasks employ knowledge about the occurrence of individual items in the acquisition list and knowledge about the organisational structure of that list. It is argued that the administration of a recall test affects only the first kind of information, whereas the administration of a recognition test affects only the second kind of information.     

The Relationship of First-Grade Readiness to Third- and Fourth-Grade Achievement

Abstract

In meaningful learning tasks the acquisition process is influenced by the way in which the individual learner interprets and encodes the material. Early attempts to recall written materials largely determine subsequent retention, even when the learner's errors are corrected. To provide an indication of how information was interpreted and encoded by learners, adult students were asked to write notes on a meaningful prose extract they heard, and they were later asked to attempt recall. Whereas the meaningful items recorded in a subject's notes had a .34 probability of recall one week later, items not recorded in notes were recalled on only .047 of occasions, suggesting that the notes learners make provide a useful indication of the products of individual encoding processes In meaningful verbal learning and memory.     

Effect of prior domain knowledge and headings on processing of informative text

College students with either high or low prior domain knowledge (PK) read a text chapter presented in short pages on a computer monitor. Half of the participants read with headings present and half with headings absent. The computer recorded time spent reading and rereading each short page. Learning was assessed through a structured recall task. In general, headings seem to improve recall of high importance information, and headings were more effective for high PK learners. Analysis of time data showed that participants with headings spent more time per word reading the pages with headings than participants that did not have headings. Prior knowledge had no effect on attention to either high importance information or important supporting detail. Low prior knowledge readers decreased the amount of time spent reading each word as they progressed through the passage and neither the presence nor absence of headings influenced this effect.     

Focus of attention and choice of text modality in multimedia learning

The term ‘modality effect’ in multimedia learning means that students learn better from pictures combined with spoken rather than written text. The most prominent explanations refer to the split attention between visual text reading and picture observation which could affect transfer of information into working memory, maintenance of information in working memory or the effective size of working memory. The assumption of a continuous need for split attention is questionable, however. Learners can keep pictorial information in working memory, when they have seen the picture before, especially if they have higher prior knowledge. Instead of suffering from a permanent split attention, learners frequently show tendencies to simply ignore pictures. This suggests guiding learners towards picture analysis by picture-related text paragraphs. We assume that these paragraphs are associated with stronger modality effects than content-related paragraphs, especially if the pictures are new to learners. These assumptions were tested in an experiment with 120 students learning about volcanism from illustrated text consisting of segments each including a content-related paragraph followed by a picture-related paragraph describing the accompanying visualization. Content-related and picture-related paragraphs were presented as visual or auditory texts leading to 2x2 conditions of text presentation. Picture novelty was manipulated by presenting a picture throughout the whole segment or only when the picture-related paragraph was read. As expected, picture-related paragraphs were associated with stronger modality effects than content-related paragraphs if picture novelty is high. The distinction between different kinds of paragraphs seems to be important for the prediction of modality effects.     

Task Dependency and the Role of Category Typicality and Metamemory in the Development of an Organizational Strategy

Second and fourth graders received 1 of 3 lists of items differing in category representativeness in either a free recall or a sort-recall task. The selection of list materials permitted a separation of the effects of age differences in category knowledge from those of that knowledge per se on children's recall behavior. Proximal and distal measures of metamemory also were derived. Levels of recall and clustering were superior in the sort-recall task and for items of high category typicality. Recall also increased with age, while grade effects for clustering were restricted to the sort-recall/high typicality condition. The deliberate use of an organizational strategy increased with items' category typicality and with age, and was more frequent in the sort-recall than in the free recall task. The results were interpreted as supporting the hypothesis that most 10-year-olds are capable of strategically activating category knowledge in appropriate task environments when items of high category typicality are provided.     

How word decoding skill impacts text memory: The centrality deficit and how domain knowledge can compensate

We examined text memory in children with word reading deficits to determine how these difficulties impact representations of text meaning. We show that even though children with poor word decoding recall more central than peripheral information, they show a significantly bigger deficit relative to controls on central than on peripheral information. We call this the centrality deficit and argue that it is the consequence of insufficient cognitive resources for connecting ideas together due to these children’s resources being diverted from comprehension to word decoding. We investigated a possible compensatory mechanism for making these connections. Because a text representation is a synthesis of text information and a reader’s prior knowledge, we hypothesized that having knowledge of the passage topic might reduce or eliminate the centrality deficit. Our results support this knowledge compensation hypothesis: The centrality deficit was evident when poor readers did not have prior knowledge, but was eliminated when they did. This presents an exciting avenue to pursue for possible remediation of reading comprehension in children with word identification difficulties.     

How prior knowledge affects word identification and comprehension

While prior knowledge of a passage topic is known to facilitate comprehension, little is known about how it affects word identification. We examined oral reading errors in good and poor readers when reading a passage where they either had prior knowledge of the passage topic or did not. Children who had prior knowledge of the topic were matched on decoding skill to children who did not know the topic so that the groups differed only on knowledge of the passage topic. Prior knowledge of the passage topic was found to significantly increase fluency and reduce reading errors, especially errors based on graphic information, in poor readers. Two possible mechanisms of how prior knowledge might operate to facilitate word identification were evaluated using the pattern of error types, as was the relationship of errors to comprehension. Implications of knowledge effects for assessment and educational policy are discussed.     

Motivational factors and writing: the role of topic interestingness

The primary objective was to investigate the effect of an important motivational variable — interest ∶ on sixth-grade children’s performance on a writing task. Because our previous research showed that prior knowledge has an inordinate effect on writing, we augmented the children’s knowledge of the topics they were to write about. Students studied one of four texts (two high-interest/moderate-knowledge and two low-interest/high-knowledge) and then were assigned to either a tutorial condition, in which they studied and wrote about the same topic, or a control condition, in which they studied one topic and wrote about a companion topic at the same interest and knowledge level. Our general expectation, that children writing with tutorial support on high-interest topics would do better than all other groups because of the motivational effect, was not supported. The results unexpectedly showed that low-interest topics supported by tutorials resulted in longer productions. In addition high interest topics facilitated only better quality ideas, but not qualitatively better writing. These results indicate that the motivational power of generally interesting topics in writing is confounded with the role of prior knowledge. It is further suggested that attentional factors may explain why topic interest has a limited effect on children’s writing performance.     

Do, Show, and Tell: Children's Event Memories Acquired through Direct Experience, Observation, and Stories

To investigate how source of event information influences children's event representations, 5- and 6-year-old children were exposed to a novel event through direct experience, observation, or a story. 2 of the 4 scenes comprising the event contained actions that were logically organized, and the remaining 2 scenes contained actions that were arbitrary in their organization. Children received either 1 or 3 exposures to the event. For children receiving multiple exposures, 2 scenes contained actions that varied across exposures. A few days following their last exposure, children were asked to verbally recall and reenact the event. Reports were generally more complete, organized, and accurate when the event was directly experienced compared to when it was observed or heard about through a story. However, the impact of information source interacted with interview (recall, reenactment) and number of event exposures. Furthermore, children's sensitivity to event structure was dependent on information source and exposure. These results highlight the importance of information source in the formation of children's event representations.     

Activation of inaccurate prior knowledge affects primary-school students’ metacognitive judgments and calibration

The study investigated whether activation of inaccurate prior knowledge before study contributes to primary-school children’s commission errors and overconfidence in these errors when learning new concepts. Findings indicate that inaccurate prior knowledge affects children’s learning and calibration. The level of children’s judgments of learning for recall responses for which they would not receive credit was inappropriately high after activation of inaccurate prior knowledge.Moreover, results showed that activation of inaccurate prior knowledge was not only detrimental for monitoring judgments during learning, but also for calibration accuracy after test taking. When judging the quality of their recall responses on the posttest, children were more overconfident when they had activated inaccurate prior knowledge. Also, the children often discarded concepts from further study after activation of inaccurate prior knowledge. These results suggest that in order to improve self-regulated learning, it may be important to detect inaccuracies in children’s prior knowledge.     

A Study of High School and College Subject Matter Patterns for Four Groups of University Students

Fifth-grade students studied a map of a fictitious island while twice listening to a related narrative containing target feature and nonfeature items. The students were cued by varying iconic and verbal stimuli in four map cue conditions; they received immediate and delayed tests to recall text items, map features, and feature locations. The students were also required to rate their confidence in each response. Students remembered more text features and were more confident of their responses when cued by icons plus labels and by icons only. Students in these groups also recalled more map features and their locations on a map reconstruction task. Memory for feature information and pictorial retrieval cues appeared to activate memory for nonfeature information contained in the text.     

Influence of source credibility on students’ noticing and assessing comprehension obstacles in science texts

This study aims to analyse the effect of source credibility on students’ identification and assessment of comprehension obstacles in science texts. Source credibility was manipulated by providing 12th grade students with paragraphs supposedly taken from science textbooks or, alternatively, from students’ reports. The paragraphs contained information expected to be difficult to understand by the participating students. The students were instructed to report any comprehension obstacle they might find and to rate the comprehensibility of the paragraphs. There was no effect of source credibility on noticing and reporting comprehension obstacles in the conditions of our experiments. However, there was a significant finding regarding comprehensibility scores. The students rated the comprehensibility of the paragraphs supposedly taken from science textbooks higher than the comprehensibility of the same paragraphs supposedly taken from peer reports. The finding has implications on the way students approach the understanding of science texts. An enhancement of students’ feelings of competence in dealing with scientific subject matter would have a beneficial effect on students’ assessment and validation of information in science texts.     

The effects of physical structure and semantic organization on the recall of prose

The effects of a prose passage's physical structure and semantic organization upon free recall performance was investigated. Passages, describing characteristics of fictitious countries, contained either five or nine paragraphs on attributes of the countries. Results showed that Mandler's in J. L. Cowan (Ed.), Studies in thought and language. Tucson: University of Arizona Press, 1970] organizational limits could apply to prose as well as word lists and could be used to explain previous discrepant results in semantic organization research. Results showed differences in the distribution of materials interacting with type of semantic organization to produce differences in recall. Different learning strategies imposed by the passage's semantic organization were also found.     

Another look at the STM capacity of prelingually deafened individuals and its relation to reading comprehension

The study investigated the short-term recall of serially presented verbal(izable) information by prelingually deafened individuals and hearing individuals, and reconsidered how short-term memory (STM) is linked with their reading skills and their memory coding strategies. A computer-controlled paradigm calling for written ordered recall of 12 lists of 8 consecutively displayed Hebrew nouns was used to assess STM capacity. Forty-nine students with prelingual deafness (mean grade 6.9) and 39 hearing students (mean grade 6.5) participated in the experiment. Twenty-seven of the participants with deafness were raised according to an oral philosophy. The remaining 22 participants from the deaf group used sign language as their preferred communication code. In general, the findings suggest that neither discrepancy in the ordered short-term recall of verbal materials nor discrepancies in reading comprehension are directly assignable to differences in the memory coding strategies of prelingually deafened and hearing individuals. If such functional discrepancies develop, they reflect absent or insufficiently internalized knowledge.     

A generative theory of textbook design: Using annotated illustrations to foster meaningful learning of science text

In three experiments, college students read a text explaining how lightning works and then took problem-solving transfer tests. Some students (integrated group) also viewed illustrations depicting the major stages in the formation of lightning that (a) were placed adjacent to corresponding text paragraphs and (b) contained annotations repeating the verbal cause-and-effect information from the text. Other students (separated group) viewed the same illustrations (a) on a separate page and (b) without annotations, after they had finished reading the text. The integrated group generated approximately 50% more creative solutions on transfer problems than the separated group, and this pattern was stronger for students who lacked experience in meteorology than for high-experience students. The positive effects of integrated illustrations depended on incorporating annotations (i.e., captions and labels) into the illustrations rather than placing illustrations close to corresponding paragraphs. Results were interpreted in light of a generative theory of multimedia learning which posits that meaningful learning requires constructing connections between visual and verbal representations of a system.     

An investigation of children’s conceptualisation of computers and how they work

This paper reports on a study in which observation, stimulated recall and semi structured interviews were used to report on children’s knowledge and understanding of computer processes. It suggests a model for identifying stages in pupils’ understanding of these processes with implications for how best to support and develop that understanding. This was a small scale, exploratory case study involving data collection in two schools. The study differentiated between: simple awareness of computer processes; immediate knowledge of how to use an item or carry out a process; ability to offer a simple explanation for a process; and ability to offer a more sophisticated explanation and to use knowledge to solve problems. It was found that all pupils had an awareness of basic input, output and storage devices and a reasonable level of confidence and competence in using the computer. However, children’s knowledge tended to be confined to what they had acquired through experience. Interviews with the same pupils over a period of time showed little development in their conceptualisation of computer processes. Some examples of children’s common misconceptions as well as partial and appropriate conceptions are given. An implication for the classroom is that more dialogue between teacher and pupil, or more realistically between teacher and groups of pupils, is needed so that the teacher can ascertain prior knowledge and understanding and present accessible explanations for pupils.     

The impact of childhood reading on the development of environmental values

Direct experiences of nature are becoming less common in our urbanised world and little research exists regarding the impact of less direct experiences, particularly how childhood reading relates to the development of pro-environmental values. This study differs from previous reports into the influence of books, as it concentrates on the potential influence of fiction rather than factual or scientific texts. This qualitative study involved semi-structured interviews with 31 educators at Eastern Australian Environmental Education Centres to understand the relationship of childhood reading and value development. Findings reveal that participants: (a) recall predominantly fictional reading material; (b) recall stories by Tolkien, Blyton and Rowling as pro-environmental influences; and (c) commonly exhibit the counter-intuitive influence of fantasy/SF stories in their formative years. Stories will never replace authentic childhood experiences in the natural environment; however, judicious use of appropriate stories could be a valuable teaching strategy as readers often unquestioningly accept information from stories.