排序方式： 共有10条查询结果，搜索用时 171 毫秒
1
1.
The dissociation between phonological and orthographic processes in word reading was investigated in a study involving 147 children in grade 3. The criterion measure was a timed word reading test. Two tasks assessed phonological skills and two tasks assessed orthographical skills. Orthographic ability accounted for variance in word reading even after phonological ability had been controlled. Poor readers differed from skilled readers in the way phonological and orthographic factors were balanced. The relationship between the two factors was fairly strong among poor readers, whereas the correlation was low for more skilled readers. Furthermore, phonological factors played a much stronger role in explaining the variance in word reading among poor readers, while on the other hand, orthographic factors were more powerful among skilled readers. 相似文献
2.
In the present study the mainfocus is on the impact of phonologicalawareness on reading comprehension. The studyinvolved 1300 children in Grade 1. Syllableawareness, phoneme awareness, word decodingand reading comprehension were each assessedwith two or three subtests. The results wereanalyzed by structural modeling. Due to themarked skewness observed for some of themanifest variables, separate analyses wereperformed for students with average worddecoding performance and for students with poorword decoding. Both among average and poordecoders, phonological awareness had a directimpact on reading comprehension, indicatingthat phonological factors play an independentrole in the processing of text. One possibleway to explain this observation is that atleast two critical factors in comprehension,vocabulary and short-term memory, are bothdetermined in part by phonological ability. Itmight also be the case that phonologicalawareness partly reflects metacognitiveprocesses assumed to be involved in readingcomprehension. 相似文献
3.
The purpose of the present study was twofold: First, the authors investigated if an extended version of the component model of reading (CMR; Model 2), including decoding rate and oral vocabulary comprehension, accounted for more of the variance in reading comprehension than the commonly used measures of the cognitive factors in the CMR. Second, the authors investigated the fitness of a new model, titled the reading efficiency model (REM), which deviates from earlier models regarding how reading is defined. In the study, 780 Norwegian students from Grades 6 and 10 were recruited. Here, hierarchical regression analyses showed that the extended model did not account for more of the variance in reading comprehension than the traditional CMR model (Model 1). In the second part of the study the authors used structural equation modeling (SEM) to explore the REM. The results showed that the REM explained an overall larger amount of variance in reading ability, compared to Model 1 and Model 2. This result is probably the result of the new definition of reading applied in the REM. The authors believe their model will more fully reflects students' differentiated reading skills by including reading fluency in the definition of reading. 相似文献
4.
The article argues for the importance of studying word‐recognition strategies in the assessment of dyslexia. The consensus model of word recognition in cognitive neuropsychology, the dual‐route model, is critically discussed in the light of attacks from computational models in modern connectionism. Despite the criticism, it is argued that a dual‐route model can serve important functions in the context of dyslexia assessment. We propose a specific version of the dual‐route model from which we construct a series of tasks for diagnosing subprocesses in word recognition. A computer‐based test battery is described, involving oral reading tasks, lexical decision, rhyme detection, letter categorization, visual analysis, naming, and semantic categorization. Latencies and accuracy scores are recorded. The usefulness of this assessment approach is demonstrated in two case studies of 15‐year‐old dyslexic boys. 相似文献
5.
Finn Egil Tønnessen Torleiv Høien Ingvar Lundberg Jan Petter Larsen 《Reading and writing》1994,6(2):151-160
The Geschwind-Behan-Galaburda hypothesis of cerebral lateralization postulates an association between immune disorders and learning disabilities. So far, the empirical evidence for such a relationship has been ambiguous. The present study is an attempt to investigate the hypothesis in a population where all the individuals were affected by immune disorders. Thus, 29 students in a special school for asthmatic children (total number of students in the school: 32) were investigated. A number of reading tests with special focus on word decoding were administered. The parents filled in a detailed questionnaire on the prevalence of reading difficulties and immune disorders among the other family members. The proportion of students with reading problems — especially phonological problems — was much higher than would be expected in a normal population. Among the family members we also found an elevated incidence of both reading problems and immune disorders. A cautious interpreptation of these findings leads to tentative and partial support of the Geschwind-Behan-Galaburda hypothesis. 相似文献
6.
In this article we attempt to demonstrate the theoretical and practical limitations of traditional subgroup classifications of acquired and developmental dyslexia. As an alternative, we suggest a process-analytical approach. A variant of a dual-route model for word processing is presented. The model guided the design of a computerized test battery for assessing strategies in word decoding and processes underlying each strategy. The usefulness of the approach was demonstrated on two cases, which according to traditional criteria, were classified as auditory dyslexics. Although both cases displayed marked deficiencies in the phonological route for word decoding, they differed in terms of underlying processes. In one case the primary problem could be located to phonological synthesis, whereas the other case had poor access of letters (phonological recoding). Such individual processing characteristics are not normally revealed by the traditional subgrouping approach. 相似文献
7.
Torleiv Høien Ingvar Lundberg Jan Petter Larsen Finn Egil Tønnessen 《Reading and writing》1989,1(4):381-392
The aim of the present study was to investigate patterns of similarity in reading related tasks among dyslexic members of the same family. From a sample of 19 well defined dyslexic students in grade 8, three cases were randomly selected for closer examination with a battery of tasks assumed to be causally related to reading. In all selected cases the fathers reported reading disability and in one case the mother was affected as well. The profiles of performance on the various tasks showed a striking similarity within families suggesting similar mechanisms underlying the reading disability. All cases showed remarkable problems in phonological processing, although functional reading skills were almost intact in some cases. Thus, the phonological tasks might be regarded as marker tasks for identifying genetic dyslexia.Requests for reprints should be sent to Torleiv Høien, Center for Reading Research, Stavanger Teacher College, P.B. 2521, Ullandhaug, N-4004 Stavanger, Norway. 相似文献
8.
Torleiv Høien Ingvar Lundberg Keith E. Stanovich Inger-Kristin Bjaalid 《Reading and writing》1995,7(2):171-188
The factorial structure underlying different types of tasks within the domain of phonological awareness was examined in two studies. Large sample sizes allowed for sensitive differentiation of constructs. In the first study, 128 preschool children without any experience of formal reading instruction were tested with a battery of tasks intended to tap various aspects of phonological awareness: rhyme recognition, syllable counting, initial-phoneme matching, initial-phoneme deletion, phoneme blending, and phoneme counting. Three basic components were extracted in a principal component analysis: a phoneme factor, a syllable factor and a rhyme factor. Cross-tabulations indicated considerable dissociation between performance on phoneme, syllable, and rhyme tasks. The structural relationships were replicated on a much larger sample (n=1509) in the second study. Subjects in this study were one year older and were attending grade 1 thus providing an opportunity to test their reading achievement. Multiple regression analyses demonstrated that the phonemic factor was by far the most potent predictor. However, the rhyming factor made an independent (although small) contribution to explaining the reading variance. Among the phonemic tasks, phoneme identification proved to be the most powerful predictor. 相似文献
9.
Brian Byrne Cara Delaland Ruth Fielding-Barnsley Peter Quain Stefan Samuelsson Torleiv Høien Robin Corley John C. DeFries Sally Wadsworth Erik Willcutt Richard K. Olson 《Annals of dyslexia》2002,52(1):47-73
We have initiated parallel longitudinal studies in Australia (Byrne, PI), the United States (Olson, PI), and Norway (Samuelsson,
PI) of identical and fraternal twins who are being tested in preschool for prereading skills, and in kindergarten, first grade,
and second grade for the development of early reading, spelling, and related cognitive skills. Comparisons of the similarities
of identical and fraternal twins will reveal the relative influence of genetic, shared family environment, and nonshared environment
on individual differences at and across different stages of development. Family and twin-specific environmental information
is also being directly assessed through parent questionnaires and observations by testers. Most of the data collected so far
have been from preschool twins (146 in Australia, 284 in the United States, and 70 in Norway). Preliminary analyses for the
preschool cognitive measures showed reliable genetic influences on phonological awareness and several measures of memory and
learning. In contrast, vocabulary, grammar, and morphology showed significant shared environment and negligible genetic effects.
A print knowledge composite showed both genetic and shared environment influence. 相似文献
10.
Preschool children in Latvia were tested in order to examine the relationships among various enabling skills and early reading performance. A principal component analysis indicated three factors: a phonemic awareness factor, a naming factor, and a short-term memory factor. Multiple regression analyses with word identification and sentence comprehension as dependent variables yielded further support to the powerful role played by phonemic awareness in explaining variance in both these aspects of reading. Unexpectedly, neither naming nor short-term memory contributed to explain unique variance in word and sentence reading. The Latvian orthography is very consistent, and our results provide further evidence to the importance of phonemic awareness in early reading acquisition especially in a transparent language. Therefore, the tasks used when assessing phonemic awareness can be very useful when screening children at risk for developing reading problems. Enhancing children's letter knowledge and phonemic awareness skills should be a priority goal in the kindergarten classroom. 相似文献
1