Predicting Dyslexia in Children With Developmental Language Disorder

2020 ◽  
Vol 63 (1) ◽  
pp. 151-162 ◽  
Author(s):  
Crystle N. Alonzo ◽  
Autumn L. McIlraith ◽  
Hugh W. Catts ◽  
Tiffany P. Hogan

Purpose In this study, we examine how well kindergarten letter identification and phonological awareness predict 2nd grade word reading and dyslexia in children with developmental language disorder (DLD) and their age- and grade-matched peers with typical language (TL). Method We employ (a) logistic regression to determine how letter identification and phonological awareness predict dyslexia, that is, dichotomous categorization of good or poor word reading, in children with DLD and TL and (b) quantile regression to determine how letter identification and phonological awareness are associated with word reading abilities on a continuum in these groups of children. Results Logistic regression revealed that letter identification was the only significant, unique kindergarten predictor of dyslexia in 2nd grade children with DLD, when compared to phonological awareness. In children with TL, both kindergarten letter identification and phonological awareness significantly predicted dyslexia in 2nd grade. Quantile regression revealed that kindergarten letter identification was a stronger predictor of 2nd grade word reading for average and lower achieving word readers with DLD and their peers with TL compared to higher performing readers. Phonological awareness was weakly associated with word reading across the full continuum of word reading abilities in children with DLD. Conclusion Letter identification is a more accurate predictor of poor word reading and dyslexia than phonological awareness in kindergarten children with DLD, which has important implications for recent U.S. legislation around early identification of dyslexia in all children.

2021 ◽  
Vol 12 ◽  
Author(s):  
María Fernanda Lara-Díaz ◽  
Angélica Mateus-Moreno ◽  
Judy Costanza Beltrán-Rojas

The Developmental Language Disorder (DLD) is a delay in language skills that cannot be explained by sensory or cognitive difficulties. Currently, there are limited studies that analyze how socioeconomic, educational, and family variables influence reading skills of Spanish-speaking children with DLD at school. This study identifies how oral language performance and reading skills of children with DLD are linked to socioeconomic, educational, and family factors. Oral language, phonological awareness and reading abilities were assessed in a sample of 15 children diagnosed with DLD and their controls by age and gender. Children's parents answered a Likert scale questionnaire inquiring about some aspects related to the family's socioeconomic status, mothers' educational level, family support, academic average, and repetition of school years of the participants. The results indicate that children with DLD have a lower performance in phonological awareness tasks as well as in reading abilities. There is also a direct relationship between their performance in language and reading skills and variables as mother's educational level and family support. Likewise, children in the sample have a lower academic average as well as a higher school year repetition rate interfering in their academic life. Educational implications of these findings and a discussion on possible causality axes and protective factors that contributes to support this population are presented.


2019 ◽  
Vol 28 (3) ◽  
pp. 932-944 ◽  
Author(s):  
Kerry Danahy Ebert ◽  
Giang Pham

Purpose Accurate identification of developmental language disorder (DLD) remains challenging, particularly for children who speak different dialects, languages, or more than 1 language. Children with DLD, on average, have shown subtle deficits on nonlinguistic cognitive processing tasks, and performance on such tasks may be minimally influenced by language experience. This study explores whether nonlinguistic cognitive processing tasks can contribute to the identification of DLD in children from diverse linguistic backgrounds. Method Study 1 combined data from 4 U.S.-based investigations to yield a sample of 395 children, ages 6–10 years, who spoke only English or both Spanish and English. Study 2 consisted of an international sample of 55 kindergarten children living in Vietnam. Each study included children with DLD and children with typical development. Participants completed nonlinguistic cognitive tasks of processing speed, auditory working memory, and attentional control. Data analysis compared typically developing to DLD groups by age and language background. Then, we empirically derived cut-points to report diagnostic accuracy (sensitivity, specificity, and positive and negative likelihood ratios). Results For all 3 tasks, adequate sensitivity or specificity (but not both in most cases) was achieved in nearly all age groups. Likelihood ratios reached moderately to very informative levels in several instances. Diagnostic results were maintained when monolingual and bilingual samples were combined into a single group. Conclusions Nonlinguistic cognitive processing tasks may contribute to accurate identification of DLD in combination with other measures. Further research is needed to refine tasks, confirm cut-points established here, and extend findings to children from additional language backgrounds.


2019 ◽  
Vol 50 (4) ◽  
pp. 518-539 ◽  
Author(s):  
Holly L. Storkel ◽  
Rouzana Komesidou ◽  
Mollee J. Pezold ◽  
Adrienne R. Pitt ◽  
Kandace K. Fleming ◽  
...  

Purpose The goal was to determine whether interactive book reading outcomes for children with developmental language disorder (DLD) were affected by manipulation of dose (i.e., the number of exposures to the target word during a book reading session) and dose frequency (i.e., the number of repeated book reading sessions) and whether pretreatment factors predicted treatment response variation. Method Thirty-four kindergarten children with DLD (aged 5;0–6;2 [years;months]) were taught 1 set of words using the Dose 6 and Dose Frequency 6 format from a prior study ( Storkel, Voelmle, et al., 2017 ) and taught a different set of words using an alternative format, either Dose 4 × Dose Frequency 9 or Dose 9 × Dose Frequency 4, determined through random assignment. Word learning was tracked for each treatment via a definition task prior to, during, and after treatment. Results Results showed that children with DLD learned a significant number of words during treatment regardless of the dose and dose frequency format but that significant forgetting of newly learned words occurred in all formats once treatment was withdrawn. Individual differences in word learning were related to Clinical Evaluation of Language Fundamentals Core Language and Understanding Spoken Paragraphs scores. Conclusion When administered at an adequate intensity, variation in the dose and dose frequency of interactive book reading does not appear to influence word learning by children with DLD. Although interactive book reading continues to show promise as an effective word learning intervention for children with DLD, further development is needed to enhance the effectiveness of this treatment approach. Supplemental Material https://doi.org/10.23641/asha.9745181


2001 ◽  
Vol 32 (1) ◽  
pp. 38-50 ◽  
Author(s):  
Hugh W. Catts ◽  
Marc E. Fey ◽  
Xuyang Zhang ◽  
J. Bruce Tomblin

Purpose: Speech-language pathologists have the skills and knowledge needed to play an important role in the early identification of children who are at risk for reading difficulties. Whereas research has identified language and other factors that may be predictive of future reading problems, studies have not provided the statistical models and classification data needed for the implementation of early identification programs. In this paper, we report the results of a longitudinal study that examined kindergarten predictors of second-grade reading outcome. Method: Six hundred and four children were given a battery of language, early literacy, and nonverbal cognitive measures in kindergarten as part of an epidemiologic study of language impairments in children. Follow-up testing of reading achievement was completed in second grade. Participants were divided into those children with and without reading difficulties. Results: Findings indicated that five kindergarten variables (letter identification, sentence imitation, phonological awareness, rapid naming, and mother’s education) uniquely predicted reading outcome in second grade. Clinical Implications: A logistic regression formula and classification data based on these results are provided. Suggestions are offered concerning how this information could be used in an early identification and intervention program for children who are at risk for reading difficulties.


Author(s):  
Ana Sucena ◽  
João Falcão Carneiro ◽  
Ana Paula Vale ◽  
Fernanda Leopoldina Viana

AbstractClassically, the assessment of reading disabilities is based on the accuracy for word and nonword reading, as well as on the accuracy or sensibility measures (such as d′) for phonological awareness tasks. Recent studies indicate that in terms of phonological awareness results, the response time is a more accurate indicator than sensibility measures (such as d′), thus providing an important measure explaining some of the differences between good and poor readers. This article explores the discriminative capability of phonological awareness task time (PATT) in reading disability assessment.One hundred and eighty-six children were tested using conventional tasks, specifically word reading, nonword reading, and phonological awareness tasks. The word and nonword accuracy and PATT were used to train self-organizing maps (SOM) to classify children into three distinct groups.Phonological awareness response time provides a powerful discriminative measure.Our results indicate that the PATT constitutes a useful selective measure, particularly in the third and fourth grades when classical variables such as word and nonword reading accuracy lose their discriminative capabilities. Also, the use of SOM to classify children’s reading abilities can successfully categorize children and capture meaningful measures such as the lexicality effect.


2005 ◽  
Vol 36 (4) ◽  
pp. 285-293 ◽  
Author(s):  
Tiffany P. Hogan ◽  
Hugh W. Catts ◽  
Todd D. Little

Purpose: Speech-language pathologists (SLPs) use phonological awareness assessments in many ways. This study examines the usefulness of these assessments in kindergarten and 2nd grade. Method: Measures of phonological awareness and letter identification were administered in kindergarten, and measures of phonological awareness, phonetic decoding (i.e., nonword reading), and word reading were administered in 2nd and 4th grades to a sample of 570 children participating in a longitudinal study of reading and language impairments. Results: A path analysis indicated that kindergarten measures of phonological awareness and letter identification provided information to the prediction of 2nd-grade reading. In 2nd grade, measures of reading offered information to the prediction of 4th-grade reading. Additionally, a reciprocal relationship was found between phonological awareness and word reading, with kindergarten phonological awareness predicting 2nd-grade word reading and, conversely, 2nd-grade word reading predicting 4th-grade phonological awareness. Clinical Implications: Phonological awareness assessment provides information about reading in kindergarten but loses its predictive power at 2nd grade. At that time, phonological awareness and word reading become so highly correlated that phonological awareness does not add information to the prediction of 4th-grade reading.


2018 ◽  
Vol 35 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Emily Dawes ◽  
Suze Leitão ◽  
Mary Claessen ◽  
Robert Kane

Although children with developmental language disorder demonstrate poor inferential comprehension, few studies have evaluated the effect of interventions to improve inferencing. This study aimed to investigate the efficacy of a small-group intervention designed to improve oral inferential comprehension of narrative discourse. Thirty-seven 5- to 6-year-old children with developmental language disorder participated. The participants were randomly allocated to the oral inferential comprehension (IC) intervention or a control phonological awareness (PA) intervention. Small-group sessions took place twice a week over 8 weeks. Participants were assessed on narrative comprehension and phonological awareness skills pre- and post-intervention, and after a maintenance period of 8 weeks. Compared to the control PA group, the participants in the IC group demonstrated a significant increase in inferential comprehension scores from pre- to post-intervention, which was maintained over time. In addition, the IC group scored significantly higher than the PA group for inferential comprehension on a post-intervention generalization measure. There was no significant difference between the two groups for literal comprehension scores at any assessment point. The results demonstrate that the small-group intervention was effective at improving inferential comprehension of narratives in 5- to 6-year-old children with developmental language disorder. Additionally, generalized improvement was shown across the narrative context, and improvements were maintained two months following the intervention.


2018 ◽  
Vol 34 (3) ◽  
pp. 221-233 ◽  
Author(s):  
Marie-Pier Godin ◽  
Andréanne Gagné ◽  
Nathalie Chapleau

The aim of this longitudinal study was to examine spelling acquisition in French children with developmental language disorder (DLD) over a school year. Through a fine-grained spelling error analysis, we investigated whether spelling profiles could be established in the DLD population. This study comprised three groups: a typically developing (TD) group ( n = 16), a group of DLD children matched on spelling skills with the TD group ( n = 8), and a group of DLD children matched on chronological age and phonological awareness skills with their DLD peers ( n = 8), but showing weaker spelling skills. Results indicated that the DLD group matched on spelling skills with the TD group tended to produce more phonologically accurate spellings than the other DLD group. However, the two DLD groups did not differ on phonological awareness skills or vocabulary. Throughout the school year, the TD group and their DLD peers matched on spelling skills tended to add more silent letters in their spelling attempts than the other DLD group. With respect to phase models of spelling acquisition, our findings suggest that more advanced phases – like the orthographic and morphographic literacy phases – can be acquired even if the foundation processes are not well developed.


Sign in / Sign up

Export Citation Format

Share Document