Kate Cain

Children's Reading Comprehension Ability: Concurrent Prediction by Working Memory, Verbal Ability, and Component Skills.

The authors report data from a longitudinal study that addresses the relations between working memory capacity and reading comprehension skills in children aged 8, 9, and 11 years. At each time point, the authors assessed childrens reading ability, vocabulary and verbal skills, performance on 2 working memory assessments (sentence-span and digit working memory), and component skills of comprehension. At each time point, working memory and component skills of comprehension (inference making, comprehension monitoring, story structure knowledge) predicted unique variance in reading comprehension after word reading ability and vocabulary and verbal ability controls. Further analyses revealed that the relations between reading comprehension and both inference making and comprehension monitoring were not wholly mediated by working memory. Rather, these component skills explained their own unique variance in reading comprehension.

The dissociation of word reading and text comprehension: Evidence from component skills

In this paper, we discuss the relative contribution of several theoretically relevant skills and abilities in accounting for variance in both word reading and text comprehension. We present data from the first and second waves of a longitudinal study, when the children were 7 to 8 years, and 8 to 9 years old. In multiple regression analyses, we show that there is a dissociation between the skills and abilities that account for variance in word reading, and those that account for variance in text comprehension. The pattern of results is very similar at both time points. Significant variance in comprehension skill is accounted for by measures of text integration, metacognitive monitoring, and working memory. By contrast, these measures do not account for variance in word reading ability, which was best accounted for by a phoneme deletion task. The implications of these findings for our understanding of the development of reading ability, children’s problems in text comprehension and for remediation will be discussed.

Inference Making Ability and Its Relation to Comprehension Failure in Young Children.

Young childrens reading comprehension skill is associated with their ability to draw inferences (Oakhill 1982, 1984). An experiment was conducted to investigate the direction of this relation and to explore possible sources of inferential failure. Three groups of children participated: Same-age skilled and less skilled comprehenders, and a comprehension-age match group. The pattern of performance indicated that the ability to make inferences was not a by-product of good reading comprehension, rather that good inference skills are a plausible cause of good reading comprehension ability. Failure to make inferences could not be attributed to lack of relevant general knowledge. Instead, the pattern of errors indicated that differences in reading strategy were the most likely source of these group differences.

Comprehension skill, inference-making ability, and their relation to knowledge.

In this study we investigated the relation between young children’s comprehension skill and inferencemaking ability using a procedure that controlled individual differences in general knowledge (Barnes & Dennis, 1998; Barnes, Dennis, & Haefele-Kalvaitis, 1996). A multiepisode story was read to the children, and their ability to make two types of inference was assessed: coherence inferences, which were essential for adequate comprehension of the text, and elaborative inferences, which enhanced the text representation but which were not crucial to understanding. There was a strong relation between comprehension skill and inference-making ability even when knowledge was equally available to all participants. Subsidiary analyses of the source of inference failures revealed different underlying sources of difficulty for good and poor comprehenders.

Individual Differences in the Inference of Word Meanings From Context: The Influence of Reading Comprehension, Vocabulary Knowledge, and Memory Capacity.

Two studies investigated the ability to use contextual information in stories to infer the meanings of novel vocabulary by 9-10-year-olds with good and poor reading comprehension. Across studies, children with poor reading comprehension were impaired when the processing demands of the task were greatest. In Study 2, working memory capacity was related to performance, but short-term memory span and memory for the literal content of the text were not. Children with poor reading comprehension were not impaired in learning novel vocabulary taught through direct instruction, but children with both weak reading comprehension and vocabulary were. Implications for the relation between vocabulary development and text comprehension are discussed.

Profiles of children with specific reading comprehension difficulties.

BACKGROUND Children with fluent and accurate word reading in the presence of poor text comprehension are impaired on a wide range of reading-related tasks. AIMS This study investigated the consistency of skill impairment in a sample of poor comprehenders to identify any fundamental skill weakness that (i) might be associated with poor text comprehension, and (ii) might lead to depressed reading development. An additional aim was to determine whether reading comprehension difficulties are associated with more general educational difficulties. SAMPLE Twenty-three poor comprehenders and 23 good comprehenders with age-appropriate word reading accuracy were assessed when aged 8 years. Concurrent reading and language performance and reading, educational attainment and reasoning skills 3 years later are reported. METHODS The following skills were assessed when aged 8 years: word reading, text comprehension, vocabulary, syntax, cognitive ability, working memory, comprehension subskills. Listening comprehension, SAT scores and reasoning scores at 11 years are also reported. RESULTS There was no evidence for any fundamental skill weaknesses in the population of poor comprehenders at Time 1. However, poor vocabulary skills led to impaired growth in word reading ability and poor general cognitive ability led to impaired growth in comprehension. Poor comprehenders obtained lower SAT scores than did the good comprehenders at 11 years. CONCLUSIONS These findings indicate that a single underlying source of poor comprehension is unlikely. Poor comprehenders are at risk of generally poor educational attainment, although weak verbal or cognitive skills appear to affect the reading development of poor comprehenders in different ways.

The Precursors of Reading Ability in Young Readers: Evidence From a Four-Year Longitudinal Study

We report a longitudinal study investigating the predictors of reading comprehension and word reading accuracy between the ages of 7 to 8 (UK Year 3) and 10 to 11 years (Year 6). We found that different skills predicted the development of each. Reading comprehension skill measured in Year 3 was a strong predictor of comprehension in Year 6; vocabulary and verbal IQ also made significant unique contributions to the prediction of comprehension ability across time. Three comprehension components (inference, comprehension monitoring, and knowledge and use of story structure) emerged as distinct predictors of reading comprehension in Year 6, even after the autoregressive effect of comprehension was controlled. For word reading accuracy, early measures of word reading accuracy and phonemic awareness predicted later performance.

Text comprehension and its relation to coherence and cohesion in children's fictional narratives

This study investigated the relation between childrens text comprehension, their ability to produce a coherent and cohesive story, and the extent to which external cues aid these aspects of narrative production. Children with reading comprehension difficulties demonstrated deficits in both aspects of story organization, relative to same-age skilled comprehenders and younger children of equivalent comprehension ability. Their performance was poor when a topic title was used to elicit the narrative, but performance improved when stories were elicited with more informative verbal and pictorial prompts. Stories with poorer structures did not contain proportionately fewer connectives in general, but the type of connective included differed in relation to story event structure. These findings are discussed in relation to the use of coherence and cohesion in narratives and their relation to comprehension skill.

The ability to learn new word meanings from context by school-age children with and without language comprehension difficulties

This study investigated young childrens ability to use narrative contexts to infer the meanings of novel vocabulary items. Two groups of 15 seven- to eight-year olds participated: children with normally developing reading comprehension skill and children with weak reading comprehension skill. The children read short stories containing a novel word and were required to produce a meaning for the novel word, both before and after its useful defining context. The proximity of the novel word to this context was manipulated. The results supported the hypothesis that children with weak reading comprehension skills are impaired in their ability to integrate information within a text, particularly when that information is non-adjacent and the processing demands are, therefore, high. Analysis of the error data revealed a similar pattern of types of errors for both groups: children with poor reading comprehension were not more likely to produce a thematically inappropriate response than their skilled peers.

Individual differences in children's memory and reading comprehension: An investigation of semantic and inhibitory deficits

Three experiments compared the verbal memory skills of children with poor reading comprehension with that of same-age good comprehenders. The aims were to determine if semantic and/or inhibitory deficits explained comprehenders’ problems on measures of verbal short-term memory and verbal working memory. In Experiment 1 there were no group differences on word- and number-based measures of short-term storage and no evidence that semantic knowledge mediated word recall. In Experiment 2 poor comprehenders were impaired on word- and number-based assessments of working memory, the greatest deficit found on the word-based task. Error analysis of both word-based tasks revealed that poor comprehenders were more likely to recall items that should have been inhibited than were good comprehenders. Experiment 3 extended this finding: Poor comprehenders were less able to inhibit information that was no longer relevant. Together, these findings suggest that individual differences in inhibitory processing influence the ability to regulate the contents of working memory, which may contribute to the differential memory performance of good and poor comprehenders.