Understanding chinese developmental dyslexia: Morphological awareness as a core cognitive construct.

Tasks representing 9 cognitive constructs of potential importance to understanding Chinese reading development and impairment were administered to 75 children with dyslexia and 77 age-matched children without reading difficulties in 5th and 6th grade. Logistic regression analyses revealed that dyslexic readers were best distinguished from age-matched controls with tasks of morphological awareness, speeded number naming, and vocabulary skill; performance on tasks of visual skills or phonological awareness failed to distinguish the groups. Path analyses further revealed that a construct of morphological awareness was the strongest consistent predictor of a variety of literacy-related skills across both groups. Findings suggest that morphological awareness may be a core theoretical construct necessary for explaining variability in reading Chinese. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Does speech rhythm sensitivity predict children's reading ability 1 year later?

There is a growing literature demonstrating that speech rhythm sensitivity is related to children's reading development, independent of phonological awareness. However, the precise nature of this relationship is less well understood, and further research is warranted to investigate whether speech rhythm sensitivity predicts the different components of reading over time. In this 1-year longitudinal study, 69 five- to 8-year-old English-speaking children completed a speech rhythm assessment at Time 1 along with other cognitive assessments and then completed a variety of reading assessments at Time 2 (1 year later). A series of hierarchical regression analyses revealed that after controlling for individual differences in age, vocabulary, and phonological awareness, speech rhythm sensitivity was able to predict unique variance in word reading and the phrasing component of the reading fluency measure 1 year later. The findings emphasize the contribution of speech rhythm sensitivity in children's reading development, and the authors argue that speech rhythm sensitivity should now be included in current models of children's reading development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Naming speed and phonological awareness as predictors of reading development.

This article investigates how well kindergarten phonological awareness (PA) and naming speed (NS) account for reading development to Grade 5. The authors use regression analyses to predict reading development, with mental ability and prior achievement controlled, and follow the reading development of children having combinations of adequate or inadequate PA and NS. PA was most strongly related to reading in the first 2 years of school, and NS's initially weaker relationship increased with grade level. Children with weak PA and slow NS were most likely to develop reading difficulties by Grade 5, followed by children with slow NS alone. The authors discuss the roles of NS and PA in reading development and the need to clarify the constructs underlying NS. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Speech perception, metalinguistic awareness, reading, and vocabulary in Chinese–English bilingual children.

In this study, we examined the intercorrelations among speech perception, metalinguistic (i.e., phonological and morphological) awareness, word reading, and vocabulary in a 1st language (L1) and a 2nd language (L2). Results from 3 age groups of Chinese–English bilingual children showed that speech perception was more predictive of reading and vocabulary in the L1 than L2. While morphological awareness uniquely predicted reading and vocabulary in both languages, phonological awareness played such a role after we controlled for morphological awareness only in the L2, which was alphabetic. L1 speech perception and metalinguistic awareness predicted L2 word reading but not vocabulary, after we controlled for the corresponding L2 variables. Hence, there are both similarities and differences between the 2 languages in how the constructs are related. The differences are attributable to variations in language properties and learning contexts. Implications of the present results for an effective L2 learning program are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Developmental models of learning to read Chinese words.

What is the nature of learning to read Chinese across grade levels? This study tested 199 kindergartners, 172 second graders, and 165 fifth graders on 12 different tasks purportedly tapping constructs representing phonological awareness, morphological awareness, orthographic processing, and subcharacter processing. Confirmatory factor analyses comparing alternative models of these 4 constituents of Chinese word reading revealed different patterns of metalinguistic underpinnings of children's word recognition across grade levels: The best-fitting model for kindergartners represented a print–nonprint dichotomy of constructs. In contrast, 2nd graders showed a fine-grained sensitivity to all 4 hypothesized constructs. Finally, the best-fitting model for 5th graders consisted of a phonological sensitivity construct and a broad lexical morphological–orthographic processing construct. Findings suggest that Hong Kong Chinese children progress from a basic understanding of print versus nonprint to a diversified sensitivity to varied word-reading skills, to a focus on meaning-based word recognition, to the relative exclusion of phonological sensitivity in more advanced readers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Nature of Phonological Awareness: Converging Evidence From Four Studies of Preschool and Early Grade School Children.

Significant controversy exists about the nature of phonological awareness, a causal variable in reading acquisition. In 4 studies that included 202 5- to 6-year-old children studied longitudinally for 3 years, 123 2- to 5-year-old children, 38 4-year-old children studied longitudinally for 2 years, and 826 4- to 7-year-old children, the authors examined the relation of sensitivity to rhyme with other forms of phonological awareness. Rhyme sensitivity was indistinguishable from phonemic awareness, segmemal awareness, and global phonological sensitivity in younger children. Rhyme sensitivity was distinguishable, although highly correlated, with these phonological skills in older children. Rhyme sensitivity was highly predictive of these other phonological skills. Children's sensitivity to different linguistic units seems best conceptualized as a single underlying ability. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Kindergarten Prediction of Reading Skills: A Longitudinal Comparative Analysis.

There is considerable focus in public policy on screening children for reading difficulties. Sixty years of research have not resolved questions of what constructs assessed in kindergarten best predict subsequent reading outcomes. This study assessed the relative importance of multiple measures obtained in a kindergarten sample for the prediction of reading outcomes at the end of 1st and 2nd grades. Analyses revealed that measures of phonological awareness, letter sound knowledge, and naming speed consistently accounted for the unique variance across reading outcomes whereas measures of perceptual skills and oral language and vocabulary did not. These results show that measures of letter name and letter sound knowledge, naming speed, and phonological awareness are good predictors of multiple reading outcomes in Grades 1 and 2. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reading Acquisition, Developmental Dyslexia, and Skilled Reading Across Languages: A Psycholinguistic Grain Size Theory.

The development of reading depends on phonological awareness across all languages so far studied. Languages vary in the consistency with which phonology is represented in orthography. This results in developmental differences in the grain size of lexical representations and accompanying differences in developmental reading strategies and the manifestation of dyslexia across orthographies. Differences in lexical representations and reading across languages leave developmental "footprints" in the adult lexicon. The lexical organization and processing strategies that are characteristic of skilled reading in different orthographies are affected by different developmental constraints in different writing systems. The authors develop a novel theoretical framework to explain these cross-language data, which they label a psycholinguistic grain size theory of reading and its development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Subtypes of reading disability: Variability around a phonological core.

Eight measures of cognitive and language functions in 232 children were subjected to multiple methods of cluster analysis in an effort to identify subtypes of reading disability. Clustering yielded 9 reliable subtypes representing 90% of the sample, including 2 nondisabled subtypes, and 7 reading-disabled subtypes. Of the reading-disabled subtypes, 2 were globally deficient in language skills, whereas 4 of the 5 specific reading-disabled subtypes displayed a relative weakness in phonological awareness and variations in rapid serial naming and verbal short-term memory. The remaining disabled subtype was impaired on verbal and nonverbal measures associated with rate of processing, including rate and accuracy of oral reading. Studies showed evidence for discriminative validity among the 7 reading-disabled subtypes. Results support the view that children with reading disability usually display impairments on phonological awareness measures, with discriminative variability on other measures involving phonological processing, language, and cognitive skills. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effects of an adapted interactive writing intervention on kindergarten children's phonological awareness, spelling, and early reading development: A contextualized approach to instruction.

Using a pretest-posttest comparison-group design, this 16-week study investigated the effects of 2 instructional approaches on the phonological awareness, alphabetic knowledge, and early reading of kindergarten children. The primary goal was to compare a form of contextualized instruction based on an adapted interactive writing program with a field-tested program of metalinguistic games. For instructional purposes, the children in each treatment group were divided into small intervention classes, with groupings based on children's common strengths and needs. Each week, these classes met with trained literacy tutors for 4 20-min lessons. Pretest and posttest measures provided data on children's phonological awareness, spelling, and reading development. Statistical analyses of the data indicated no between-groups differences with regard to phonological awareness and spelling achievement. In contrast, results revealed statistically significant differences between the 2 groups on word identification, passage comprehension, and word reading development measures, with the adapted interactive writing group demonstrating greater achievement. These findings verify that the children participating in a contextualized program matched or exceeded the achievement of the children participating in a structured program of metalinguistic games. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Contribution of morphological awareness to Chinese-English biliteracy acquisition.

This study is an investigation of the contribution of morphological awareness in Chinese-English biliteracy acquisition. Comparable tasks in Chinese and English were administered to test children's skills in morphological awareness, phonological awareness, oral vocabulary, word reading, and reading comprehension. The results showed that after the effect of Chinese-based predictors had been accounted for, English morphological awareness of compound structure still contributed to variance in both character reading and reading comprehension in Chinese. This finding indicates a cross-language morphological transfer in acquisition of two distinct writing systems. The transfer from English L2 to Chinese L1 is due to the bilingual children's rapidly increasing English L2 skills in their primary school years. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Genetic and environmental effects of serial naming and phonological awareness on early reading outcomes.

The current study involved 281 early-school-age twin pairs (118 monozygotic, 163 same-sex dizygotic) participating in the ongoing Western Reserve Reading Project (S. A. Petrill, K. Deater-Deckard, L. A. Thompson, & C. Schatschneider, 2006). Twins were tested in their homes by separate examiners on a battery of reading-related skills including phonological awareness, rapid automatized naming, word knowledge, and phonological decoding. Results suggested that a core genetic factor accounted for a significant portion of the covariance between phonological awareness, rapid naming, and reading outcomes. However, shared environmental influences related to phonological awareness were also associated with reading skills. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Oral language and code-related precursors to reading: Evidence from a longitudinal structural model.

This study examined code-related and oral language precursors to reading in a longitudinal study of 626 children from preschool through 4th grade. Code-related precursors, including print concepts and phonological awareness, and oral language were assessed in preschool and kindergarten. Reading accuracy and reading comprehension skills were examined in 1st through 4th grades. Results demonstrated that (a) the relationship between code-related precursors and oral language is strong during preschool; (b) there is a high degree of continuity over time of both code-related and oral language abilities; (c) during early elementary school, reading ability is predominantly determined by the level of print knowledge and phonological awareness a child brings from kindergarten; and (d) in later elementary school, reading accuracy and reading comprehension appear to be 2 separate abilities that are influenced by different sets of skills. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Training phonological skills and letter knowledge in children at risk for dyslexia: A comparison of three kindergarten intervention programs.

The authors compared the effects of 3 kindergarten intervention programs on at-risk children's subsequent reading and spelling skills. From a sample of 726 screened kindergarten children, 138 were selected as children potentially at risk for dyslexia and randomly assigned to 1 of 3 training conditions: (a) letter-sound training, (b) phonological awareness training, and (c) combined training in phonological awareness and letter knowledge. A control group of 115 unselected ("normal") kindergarten children was recruited to evaluate the training effects. Results indicated that the combined training yielded the strongest effects on reading and spelling in Grades 1 and 2. Thus, these findings confirm the phonological linkage hypothesis in that combining phonological awareness training with instruction in letter-sound knowledge has more powerful effects on subsequent literacy achievement than phonological awareness training alone. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On subtypes of developmental dyslexia: Evidence from processing time and accuracy scores.

Determined the proportion of phonological dyslexics (Ph-DYS) and surface dyslexics (S-DYS) in a population of French dyslexics by applying A. Castles and M. Coltheart's (1993) regression method to 2 diagnostic measures: pseudo-word and irregular-word processing time. 31 dyslexics were matched to 19 average readers of the same age (aged 10 yrs, CA controls) and to 19 younger children of the same reading level (aged 8 yrs, RL controls). Compared to CA controls, there were more Ph-DYS than S-DYS. Compared to RL controls, there were still a high number of Ph-DYS. The reliability of these subtypes across different measures of phonological and orthographic skills was also examined. Compared to RL controls, both groups of dyslexics were found to be impaired only in phonological skills. The moment at which the 2 dissociated profiles emerged in the course of cognitive development was assessed by examining data that was collected when the children were 7 and 8 yrs old. The results show that only the S-DYS's orthographic deficit increased with development. The authors also looked at whether the Ph-DYS and S-DYS profiles were associated with other specific cognitive deficits. Specific deficits in phonemic awareness and in phonological short-term memory were found for both Ph-DYS and S-DYS. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Phonemic segmentation skill and beginning reading.

Investigated the relation of phonological awareness to learning to read in 63 1st-grade children (mean age 6 yrs 2 mo), who were administered tests of verbal intelligence, phonemic segmentation ability, and reading achievement. Verbal intelligence was measured using the PPVT—Form A. Results indicate that the relation of nondigraph word segmentation to reading achievement is greater than that of digraph word segmentation to reading achievement and that this relation is nonlinear. Consistent with the claim of a causal connection between phonological awareness and reading acquisition, a contingency analysis of the data revealed that phonemic segmentation ability is a necessary, but not sufficient, condition for learning to read. The data were also subjected to a path analysis, which indicated that phonological awareness affects reading comprehension indirectly through phonological recoding and that the development of phonological awareness is not greatly affected by method of instruction. Implications of these findings for educational practice are briefly indicated. (36 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gastrointestinal manifestations in pediatric AIDS

Current debate over the influence of phonological awareness on early reading development is polarised around small-unit (phoneme) processing and large-unit (onset-rime) processing. These opposing theories were contrasted by assessing the impact of pre-school phonological skills on reading amongst children experiencing their first year of formal instruction by a mixed method. Those beginning readers who could decode nonwords were found to have accomplished this by employing their letter-sound knowledge rather than by making analogies based on familiar rime units. Children displayed this pattern of performance regardless of their pre-school rhyming skills. Further investigations revealed that explicit awareness of onset and rime units was poor, even amongst children whose implicit rhyming skills were excellent. This evidence, together with the children's knowledge of orthographic units, was consistent with the view that letter-sound correspondences rather than onset or rime units formed the basis of their first attempts to utilise phonology in reading. The findings are discussed with reference to instructional influences on early reading and phonological awareness.