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1.
Orthographic spelling is a major difficulty in German-speaking children with dyslexia. The aim of the present study was to
evaluate the effectiveness of an orthographic spelling training in spelling-disabled students (grade 5 and 6). In study 1,
ten children (treatment group) received 15 individually administered weekly intervention sessions (60 min each). A control
group (n = 4) did not receive any intervention. In study 2, orthographic spelling training was provided to a larger sample consisting
of a treatment group (n = 13) and a delayed treatment control group (n = 14). The main criterion of spelling improvement was analyzed using an integrated dataset from both studies. Repeated-measures
analysis of variance revealed that gains in spelling were significantly greater in the treatment group than in the control
group. Statistical analyses also showed significant improvements in reading (study 1) and in a measure of participants’ knowledge
of orthographic spelling rules (study 2). The findings indicate that an orthographic spelling training enhances reading and
spelling ability as well as orthographic knowledge in spelling-disabled children learning to spell a transparent language
like German. 相似文献
2.
Children (5 and 6 years old, n = 30) at familial risk of dyslexia received a home-based intervention that focused on phoneme awareness and letter knowledge
in the year prior to formal reading instruction. The children were compared to a no-training at-risk control group (n = 27), which was selected a year earlier. After training, we found a small effect on a composite score of phoneme awareness
(d = 0.29) and a large effect on receptive letter knowledge (d = 0.88). In first grade, however, this did not result in beneficial effects for the experimental group in word reading and
spelling. Results are compared to three former intervention studies in The Netherlands and comparable studies from Denmark
and Australia. 相似文献
3.
Jurgen Tijms 《Journal of Research in Reading》2004,27(3):300-310
This study examines whether two frequently reported causes of dyslexia, phonological processing problems and verbal memory impairments, represent a double‐deficit or whether they are two expressions of the same deficit. Two‐hundred‐and‐sixty‐seven Dutch children aged 10–14 with dyslexia completed a list‐learning task and several phonological tasks, together with a number of reading and spelling tests. The results indicate that phonological deficits and verbal memory impairments in dyslexia stem from the same root, which seemingly reflects an inaccurate encoding of the phonological characteristics of verbal information. This phonological encoding deficit is a negative predictor for both the reading and spelling skills of dyslexic children. 相似文献
4.
A meta-analysis of morphological interventions: effects on literacy achievement of children with literacy difficulties 总被引：2，自引：0，他引：2
This study synthesizes 79 standardized mean-change differences between control and treatment groups from 17 independent studies,
investigating the effect of morphological interventions on literacy outcomes for students with literacy difficulties. Average
total sample size ranged from 15 to 261 from a wide range of grade levels. Overall, morphological instruction showed a significant
improvement on literacy achievement ([`(d)] \overline d = 0.33). Specifically, its effect was significant on several literacy outcomes such as phonological awareness ([`(d)] \overline d = 0.49), morphological awareness ([`(d)] \overline d = 0.40), vocabulary ([`(d)] \overline d = 0.40), reading comprehension ([`(d)] \overline d = 0.24), and spelling ([`(d)] \overline d = 0.20). Morphological instruction was particularly effective for children with reading, learning, or speech and language
disabilities, English language learners, and struggling readers, suggesting the possibility that morphological instruction
can remediate phonological processing challenges. Other moderators were also explored to explain differences in morphological
intervention effects. These findings suggest students with literacy difficulties would benefit from morphological instruction. 相似文献
5.
Franklin R. Manis Mark S. Seidenberg Lynne Stallings Marc Joanisse Caroline Bailey Laurie Freedman Suzanne Curtin Patricia Keating 《Annals of dyslexia》1999,49(1):105-134
There is a consensus that dyslexia is on a continuum with normal reading skill and that dyslexics fall at the low end of the
normal range in phonological skills. However, there is still substantial variability in phonological skill among dyslexic
children. Recent studies have focused on the high end of the continuum of phonological skills in dyslexics, identifying a
“surface” dyslexic, or “delayed” profile in which phonological skills are not out of line with other aspects of word recognition.
The present study extended this work to a longitudinal context, and explored differences among subgroups of dyslexics on a
battery of component reading skills. Third grade dyslexics (n=72) were classified into two subgroups, phonological dyslexics and delayed dyslexics, based on comparisons to younger normal
readers at the same reading level (RL group). The children were tested at two points (in third and fourth grade). The results
revealed that the classification of dyslexics produced reliable, stable, and valid groups. About 82 percent of the children
remained in the same subgroup category when retested a year later. Phonological dyslexics were lower in phoneme awareness
and expressive language. Delayed dyslexics tended to be slower at processing printed letters and words but not at rapid automatic
naming of letters, and relied more heavily on phonological recoding in reading for meaning than did phonological dyslexics.
A subset of the delayed dyslexics with the traditional “surface dyslexic” pattern (relatively high pseudoword and low exception
word reading) was also identified. The surface subgroup resembled the RL group on most measures and was not very stable over
one year. The results are discussed in light of current models of dyslexia and recent subgrouping schemes, including the Double-Deficit
Hypothesis. 相似文献
6.
《Scientific Studies of Reading》2013,17(4):309-333
We examined the oral and written spelling performance on the Treiman-Bourassa Early Spelling Test (Treiman & Bourassa, 2000a) of 30 children with serious reading and spelling problems and 30 spelling-level-matched younger children who were progressing normally in learning to read and spell. The 2 groups' spellings were equivalent on a composite measure of phonological and orthographic sophistication, representation of the phonological skeleton of the items, and orthographic legality. The groups showed a similar advantage for words over nonwords on the phonological skeleton and orthographic legality measures. The children with dyslexia and the comparison children also showed an equivalent advantage for written over oral spelling on the composite and phonological skeleton measures. Further analyses revealed that children with dyslexia made many of the same linguistically based errors as typically developing children but also pointed to some subtle differences between the groups. Overall, the spelling performance of children with dyslexia appears to be quite similar to that of normally progressing younger children. 相似文献
7.
The aim of the study was to elucidate the nature and efficiency of the strategies that readers with phonological dyslexia
use for temporary retention of written words in Working Memory (WM). Data was gathered through a paradigm whereby participants
had to identify serially presented written (target) words from within larger word pools according to their presentation order,
with word pools containing code-specific distracter (CSD) words and non-code-specific distracter (NCSD) words. Analyses focused
on three aspects of performance: (1) false recognition of target words; (2) correct recognition of target words; and (3) retention
of word presentation order. Participants were readers with diagnosed phonological dyslexia (n = 20, mean grade level = 9.05 [0.89]) and a control group of regular readers (n = 25, mean grade level = 9.00 [0.76]). Results provide direct evidence that the dyslexic readers and the regular readers
used essentially different memory coding strategies for the temporary retention of written words, with the former predominantly
relying on a visual strategy and the latter on a phonological strategy. Findings further pinpointed a notably impoverished
ability of the dyslexic readers to retain word presentation order. The implication of these findings is discussed in relation
to theories predicting the acquisition and mastery of reading.
相似文献
| Paul MillerEmail: |
8.
Children (n = 122) and adults (n = 200) with dyslexia completed rapid automatic naming (RAN) letters, rapid automatic switching (RAS) letters and numbers,
executive function (inhibition, verbal fluency), and phonological working memory tasks. Typically developing 3rd (n = 117) and 5th (n = 103) graders completed the RAS task. Instead of analyzing RAN/RAS results the usual way (total time), growth mixture modeling
assessed trajectories of successive times for naming 10 symbols in each of five rows. For all three samples and both RAN and
RAS, two latent classes were identified. The “faster” class performed slowly on the first row and increased time by small increments on subsequent rows. The “slower” latent class performed more slowly on the first row, and children, but not adults, increased time by larger increments on subsequent rows. For children, both the initial row (automaticity index) and slope (sustained controlled processing index)
of the trajectory differentiated the classes. For adults, only the initial row separated the classes. The longest time was
on row 3 for RAN and row 4 for RAS. For the typically developing 5th graders, close in age to the children with dyslexia,
the trajectories were flatter than for children with dyslexia and only the slower class (4%) showed the peak on row 4. For
children with dyslexia, inhibition predicted RAN slope within the slower latent class and phonological working memory predicted
RAS slope for both latent classes. For adults with dyslexia, inhibition and phonological working memory differentiated both
latent classes on RAN intercept and RAS slope. Taken together, RAN, which may assess the phonological loop of working memory,
and RAS, which may assess the central executive in working memory, may explain the timing deficit in dyslexia in sustaining
coordinated orthographic-phonological processing over time.
This research was supported by Grant Ns. P50 33812 and R01 HD25858 from the National Institute of Child Health and Human Development,
Virginia W. Berninger, PI. 相似文献
9.
Preschool-aged children (n = 58) were randomly assigned to receive small group instruction in letter names and/or sounds or numbers (treated control).
Alphabet instruction followed one of two approaches currently utilized in early childhood classrooms: combined letter name
and sound instruction or letter sound only instruction. Thirty-four 15 minute lessons were provided, with children pre- and
post-tested on alphabet, phonological awareness, letter–word identification, emergent reading, and developmental spelling
measures. Results suggest benefits of combined letter name and sound instruction in promoting children’s letter sound acquisition.
Benefits did not generalize to other emergent literacy skills. 相似文献
10.
The aim of this study was to investigate the theory that visual magnocellular deficits seen in groups with dyslexia are linked
to reading via the mechanisms of visual attention. Visual attention was measured with a serial search task and magnocellular
function with a coherent motion task. A large group of children with dyslexia (n = 70) had slower serial search times than a control group of typical readers. However, the effect size was small (η
p2 = 0.05) indicating considerable overlap between the groups. When the dyslexia sample was split into those with or without
a magnocellular deficit, there was no difference in visual search reaction time between either group and controls. The data
suggest that magnocellular sensitivity and visual spatial attention weaknesses are independent of one another. They also provide
more evidence of heterogeneity in response to psychophysical tasks in groups with dyslexia. Alternative explanations for poor
performance on visual attention tasks are proposed along with avenues for future research. 相似文献
11.
Difficulties in reading and language skills which persist from childhood into adult life are the concerns of this article.
The aims were twofold: (1) to find measures of adult reading processes that validate adults’ retrospective reports of difficulties
in learning to read during the school years, and (2) to search for indications of basic deficits in phonological processing
that may point toward underlying causes of reading difficulties. Adults who reported a history of difficulties in learning
to read (n=102) were distinctly disabled in phonological coding in reading, compared to adults without similar histories (n=56). They were less disabled in the comprehension of written passages, and the comprehension disability was explained by
the phonological difficulties. A number of indications were found that adults with poor phonological coding skills in reading
(i.e., dyslexia) have basic deficits in phonological representations of spoken words, even when semantic word knowledge, phonemic
awareness, educational level, and daily reading habits are taken into account. It is suggested that dyslexics possess less
distinct phonological representations of spoken words.
This research was supported by a grant from the Danish Research Council to the first author. 相似文献
12.
Robert Savage Sue Carless 《Educational research; a review for teachers and all concerned with progress in education》2013,55(1):45-61
Evidence suggests that phonic interventions delivered by trained researchers improve early reading and spelling. This study sought to explore whether school Learning Support Assistants (LSAs) can also improve performance using these methods. Four groups (each of n?=?27) of the poorest reading 6-year-old children in nine schools were screened and selected for this study. LSAs were briefly trained to administer phonic programmes as small group interventions for nine weeks. Rhyme- and phoneme-based programmes were also contrasted with controls receiving the National Literacy Strategy. At post-test, all intervention group children were better decoders, and had better phonological awareness and letter?–?sound knowledge than controls. The phoneme-based group had better letter?–?sound knowledge than the other intervention groups. It is concluded that trained Learning Support Assistants can deliver effective early preventive programmes for literacy difficulties. 相似文献
13.
14.
The purpose of the study is to compare problem based learning (PBL) and lecture-based learning (LBL) in Hong Kong secondary
students’ science achievement. Secondary One students were divided into two groups: group A (n = 37), was taught two topics: “Human Reproduction” and “Density” through PBL; group B (n = 38) was taught the same topics by LBL. Multiple choice questions and short structured response items were used to assess
students’ academic performance. Pre and post tests were categorized into three domains: knowledge, comprehension and application
according to Bloom’s Taxonomy (Bloom 1956). The results of this study suggest first that PBL is at least as effective as LBL in gaining the knowledge required to achieve
the syllabus’ learning objectives; secondly, the PBL group shows a significant improvement in students’ comprehension and
application of knowledge over an extended time. Seemingly, PBL is favored for knowledge retention compared to a more conventional
teaching approach, by these early adolescent children in Hong Kong. An ongoing longitudinal study on students’ interactions
will further determine whether students taught through PBL develop improved learning in relation to high order skills, in
a local situation which still tends to focus on factual recall but where higher skills are being demanded by systemic reform. 相似文献
15.
Meesha Warmington Susan E. Stothard Margaret J. Snowling 《Journal of Research in Special Educational Needs》2013,13(1):48-56
Although there are a number of standardised measures to assess dyslexia in children, there are comparatively fewer instruments suitable for the assessment of dyslexia in adults. Given the growing number of students entering UK higher education institutions, there is a need to develop reliable tools for assessing the additional needs of those with dyslexia and related difficulties. This study reports data from a revised version of the York Adult Assessment: An Assessment Battery for Dyslexia Screening in Higher Education. The current York Adult Assessment‐Revised (YAA‐R) is an assessment battery consisting of tests of reading, spelling, writing and phonological skills. Data from a normative sample of 106 adults without dyslexia and a validation sample of 20 adults with dyslexia illustrate significant group differences on the tests comprising the YAA‐R. Additionally, the YAA‐R has good discriminatory power yielding 80% sensitivity and 97% specificity. Taken together, the YAA‐R is a suitable test battery for the assessment and identification of dyslexia in university students. 相似文献
16.
The spelling errors of third graders who fit phonological andsurface profiles of developmental dyslexia were analyzed, alongwith the errors of younger (reading level matched) andchronologically age matched non-dyslexic comparison groups. InStudy 1, errors were analyzed as phonologically constrained,unconstrained, or inaccurate and as either orthographicallyacceptable or unacceptable. Study 2 extended the errorclassification system to nonword spellings. The main finding wasthat different types of dyslexics produced different types oferrors. Both studies found that children produced spelling errorsconsistent with their type of dyslexia. The phonological groupshowed poor knowledge of phoneme-grapheme correspondences,consistent with the existence of a phonological deficit. Thesurface group's spelling error profile differed from thephonological group and closely resembled the younger normalcomparison group. This pattern is consistent with other evidencethat surface dyslexia represents a general delay in acquiringliteracy skills. The studies provide converging evidence, from aspelling task, that developmental dyslexia is a non-homogeneouscategory consisting of at least two major subtypes with distinctetiologies and behavioral sequelae. 相似文献
17.
Lisa Lim Joanne Arciuli Susan Rickard Liow Natalie Munro 《Scientific Studies of Reading》2014,18(3):173-191
This study examined whether there are processing differences between children with Down syndrome (DS; n = 22; 7 years 8 months to 13 years 10 months) and typically developing children (TD; n = 22; 6 years 6 months to 10 years 10 months), matched for receptive vocabulary. The TD children performed better on tests of nonverbal intelligence (matrices), phonological awareness (sound deletion), and phonological short-term memory (digit span), as well as spelling accuracy (30 single words). Separate regression analyses revealed that nonverbal intelligence and phonological awareness were the best predictors of spelling accuracy for TD children, whereas receptive vocabulary and phonological short-term memory were the best predictors for children with DS. An examination of spelling errors suggested that although children with DS do use some phonological awareness during spelling, deficits in short-term memory appear to limit success. The implications of these results for intervention studies are briefly discussed. 相似文献
18.
19.
Marina L. Puglisi Charles Hulme Lorna G. Hamilton Margaret J. Snowling 《Scientific Studies of Reading》2017,21(6):498-514
The home literacy environment is a well-established predictor of children’s language and literacy development. We investigated whether formal, informal, and indirect measures of the home literacy environment predict children’s reading and language skills once maternal language abilities are taken into account. Data come from a longitudinal study of children at high risk of dyslexia (N = 251) followed from preschool years. Latent factors describing maternal language were significant predictors of storybook exposure but not of direct literacy instruction. Maternal language and phonological skills respectively predicted children’s language and reading/spelling skills. However, after accounting for variations in maternal language, storybook exposure was not a significant predictor of children’s outcomes. In contrast, direct literacy instruction remained a predictor of children’s reading/spelling skills. We argue that the relationship between early informal home literacy activities and children’s language and reading skills is largely accounted for by maternal skills and may reflect genetic influences. 相似文献
20.
George K. Georgiou George Manolitsis Jari-Erik Nurmi Rauno Parrila 《Contemporary educational psychology》2010
We examined the importance of children’s classroom activity, defined as task-focused versus task-avoidance behavior, on different literacy outcomes in an orthographically consistent language. Greek children (n = 95) were tested in kindergarten, grade 1, and grade 2 on measures of general cognitive ability, phonological awareness, RAN, and short-term memory. The teachers of the children also assessed their task-focused behavior. Nonword decoding, reading fluency, spelling, and reading comprehension measures were administered in grades 2 and 3. The results indicated that task-focused behavior accounted for unique variance in spelling and reading comprehension, even after controlling for the effects of autoregressor, non-verbal IQ, and phonological processing. 相似文献