Morphological awareness intervention in mainland Chinese school-age children with developmental dyslexia.

Issue Editor Foreword

Across all the domains of child development, we need to understand the temporal relationship between variables suspected to underpin growth; reading research is no exception. We conducted a preliminary evaluation of the direction of the relationship between children's morphological awareness, or the awareness of and ability to manipulate the smallest meaningful units in words, and their reading accuracy. Participants were 100 Grade 2 children who were tested again in Grade 3. We evaluated the children's morphological awareness and reading accuracy, each with 2 measures, in both Grades 2 and 3. We evaluated the outcomes in a robust measurement model including controls for phonological awareness, vocabulary, and nonverbal ability. These analyses included autoregressor controls designed to provide insight into the temporal relationship between these 2 skills. We found that children's early morphological awareness was associated with their growth in reading accuracy to the same extent that their early reading accuracy was associated with their growth in morphological awareness. Our results suggest a bidirectional relationship between children's morphological awareness and their reading accuracy, a finding that informs current models of reading development.

Morphological awareness positively influences language and literacy development and may be an ideal intervention focus for improving vocabulary, sight word reading, reading decoding, and reading comprehension in students with and without language and literacy deficits. This article will provide supporting theory, research, and strategies for implementing morphological awareness intervention with students with language and literacy deficits. Additionally, functional connections are explored through the incorporation and application of morphological awareness intervention in academic literacy contexts linked to Common Core State Standards.

For school-age students with language and literacy deficits (LLD), such as those with developmental language disorder (DLD) and/or dyslexia, literacy challenges can affect reading comprehension, written language, and overall academic success. Researchers have established that instruction in morphological awareness, especially with a phonological, orthographic, semantic, and syntactic focus, results in positive reading and writing outcomes. The purpose of this clinical focus article is to provide evidence for a multilinguistic literacy intervention approach grounded in morphological awareness, along with a case-based tutorial for its implementation in a relevant academic context. Focusing on the morphological meaning components within words provides an ideal opportunity to reflect on how these units provide clues and support to other linked language components such as phonology or word pronunciation, orthographic spelling, semantic meaning, and syntactic grammar. A discussion is provided for leveraging morphological awareness across a multilinguistic literacy intervention approach to connect foundational linguistic knowledge and bridge strategy, meaning, and purpose. We address how this intervention can be integrated with a classroom curricular unit and implemented via individual, small-group, or classroom-based intervention using a case-based example. Morphological awareness intervention has been found to be effective in supporting the vocabulary, decoding, spelling, and reading comprehension of students with LLD. Thus, infusing this metalinguistic strategy in multilinguistic literacy intervention that integrates academically relevant texts can be a powerful tool for speech-language pathologists and literacy specialists to support the literacy success of students with DLD and/or dyslexia.

This study aimed to investigate the moderating effect of morphological awareness on the relationship between word detection skills and reading comprehension in Chinese children with and without dyslexia. The study included 116 Chinese children in third to sixth grades, with 60 children diagnosed with dyslexia and 56 matching typically developing children. ANCOVAs revealed significant group differences in word detection skills and morphological awareness, with children with dyslexia performing significantly worse than their typically developing peers. Partial correlation analyses showed significant correlations between reading comprehension and morphological awareness in typically developing children and between reading comprehension and both word detection skills and morphological awareness in children with dyslexia. Moderation analyses revealed that morphological awareness significantly moderated the relationship between word detection skills and reading comprehension in both groups. For typically developing children, the relationship was significant at higher levels of morphological awareness, while for children with dyslexia, the relationship was significant at lower levels of morphological awareness. The findings suggest that word detection skills may serve as a compensatory mechanism for children with dyslexia when morphological awareness is at lower levels, highlighting the need for targeted interventions and individualised approaches to reading instruction.

BackgroundResponse inhibition is an important predictor of attention deficit hyperactivity disorder (ADHD), and many studies have shown that phonological awareness is associated with inhibition in native English-speaking children. Unlike English, which is phonetic, Chinese is an ideographic language. In the context of Chinese as a native language, do children with ADHD have deficits in morphological awareness? The present study explored the differences in response inhibition and morphological awareness between children with ADHD and typically developing (TD) children using behavioral data and event-related potentials (ERPs) to verify whether there is a morphological awareness deficit in children with ADHD.MethodGo/No-go task was used to verify the presence of response inhibition deficits in children with ADHD, in which participants were required to respond rapidly to a “Go” stimulus and inhibit responses to a “No-go” stimulus. The Morphological Awareness task was used to verify the presence of a morphological awareness deficit in children with ADHD, in which participants were required to make judgement about true word and pseudo-word.ResultsGo/No-go task shows children with ADHD had significantly lower correct No-go stimuli and longer reaction times than TD children, lower evoked N200 amplitudes, and significantly impaired inhibitory control in children with ADHD. The morphological awareness task required participants to recognize pseudo-words and true words, and to respond to pseudo-words. The results showed no difference between the two groups of children in terms of correct response rate, N400 wave amplitude, and latency on the morphological awareness test.ConclusionThe results of the study showed that children with ADHD have deficits in response inhibition compared to TD children and do not have significant deficits in morphological awareness.

We investigated the efficacy of a morphological awareness intervention on the morphological awareness and reading skills of students from low-socioeconomic-status homes; we also examined whether the intervention was similarly effective for intervention students who differed in their initial morphological awareness abilities. The 8-week intervention was designed to increase awareness of affixes and the relations between base words and their inflected and derived forms for kindergarteners (n = 27) and first- (n = 22) and second-grade (n = 26) students. Students randomly assigned to the small group intervention were provided instruction four times a week, 25 min a day, whereas students assigned to the control group received “business as usual.” Kindergarten and first- and second-grade students receiving the intervention showed statistically significant gains in morphological awareness with large effect sizes on most measures. Students in all three grades who received the intervention demonstrated nonsignificant gains in literacy abilities with null to small effect sizes. Further, students with low morphological awareness abilities at the onset of the study demonstrated similar gains from the intervention as their peers with typical morphological awareness abilities. Our results suggest that explicit morphological awareness instruction may produce gains of practical importance to young elementary students at risk for future literacy difficulties.

We investigated the effect of a morphological awareness intervention on the morphological awareness and reading skills of a 6-year-old student who was struggling with early reading skills and had a history of speech and language impairment. We conducted a 7-week intervention designed to increase the student’s awareness of affixes and the meaning relations between base words and their inflected and derived forms. The student received twenty-five, 35-min sessions, typically receiving three to four sessions per week. Results revealed clinically relevant gains in morphological awareness abilities and word-level (sight word) reading skills. Gains were noted in pseudoword reading and reading comprehension, but they did not reach clinically relevant levels. The results of our case study suggest that our relatively short, but somewhat intensive, morphological awareness intervention led to clinically relevant gains in morphological awareness skills and word-level reading abilities for our 6-year-old student with a history of speech and language impairment. Initial clinical implications, limitations of the study, and research suggestions are discussed.

This study investigates the effect of morphological treatment on morphological awareness and reading comprehension skill in a foreign language teaching. Experimental design was used in this study which was conducted with 74 freshmen who are studying at Translation and Interpreting Department. Following the Oxford Quick Placement Test and Nation’s Vocabulary Knowledge Test, the participants were divided into two groups as experimental and control groups. Before starting the training process, both groups were pretested with ‘Morphological Correction Test (MCT)’ and ‘Reading Comprehension Test (RCT)’. Following the completion of the pre-test, the treatment period of experimental group for 2 semesters started, while the control group completed the same exercises and studies without focusing on the morphological awareness. Behind the training, post-test study was applied to both groups and the differences were analysed. According to the results, the experimental group outperformed the control group in MCT and RCT. In other words, the morphological awareness of the experimental group increased efficiently; in addition to this, their reading comprehension skills developed as well. Besides, it can be said that the participants benefited effectively and consciously from the explicit training period of morphological awareness and this helped them improve their metalinguistic capacity.

The significance of vocabulary knowledge in academic development and having a sufficient vocabulary in language learning cannot be overstated. Research has shown that postgraduate students studying English as a second language (L2) lack vocabulary and require improving it. This research study was conducted to investigate the role of morphological awareness and its relation to productive vocabulary breadth and explore the function of teaching L2 postgraduate students in intervention for improving their productive vocabulary breadth. Thirty L2 postgraduate participants were involved in an intervention. The intervention included 11 sessions of morphological awareness instructions. The students’ morphological awareness was tested using the Morphological Identification Test (MIT) and the Morphological Structure Awareness Test (MSAT), while productive vocabulary breadth was tested using the Productive Vocabulary Level Test (PVLT). A significant relationship was found between morphological awareness and productive vocabulary breadth. The synthetic aspect of morphological awareness was more closely related to the participants’ productive vocabulary breadth than the analytic aspect. The morphological awareness intervention was effective and beneficial in increasing the students’ productive vocabulary breadth. The results may indicate the benefits of teaching and learning morphology to L2 postgraduate students, especially for effective vocabulary building.

This study examined the relationship between children's morphological awareness and their ability to produce accurate morphological derivations in writing. Fifth-grade U.S. students (n = 175) completed two writing tasks that invited or required morphological manipulation of words. We examined both accuracy and error, specifically errors in spelling and errors of the sort we termed morphological inventions, which entailed inappropriate, novel pairings of stems and suffixes. Regressions were used to determine the relationship between morphological awareness, morphological accuracy, and spelling accuracy, as well as between morphological awareness and morphological inventions. Linear regressions revealed that morphological awareness uniquely predicted children's generation of accurate morphological derivations, regardless of whether or not accurate spelling was required. A logistic regression indicated that morphological awareness was also uniquely predictive of morphological invention, with higher morphological awareness increasing the probability of morphological invention. These findings suggest that morphological knowledge may not only assist children with spelling during writing, but may also assist with word production via generative experimentation with morphological rules during sentence generation. Implications are discussed for the development of children's morphological knowledge and relationships with writing.

A predictive model for chinese children with developmental dyslexia—Based on a genetic algorithm optimized back-propagation neural network

The current study was conducted to examine the percentages of cognitive skills deficits among Chinese children with developmental dyslexia. Via a systematic review, we collated twenty-two available studies on the proportion of cognitive skills deficits, including phonological awareness, rapid automatized naming, morphological awareness, orthographic knowledge, short-term memory and working memory, and visual and motor skills deficits, among Chinese children with developmental dyslexia. The results of a meta-analysis showed that the rapid automatized naming deficits are the core deficit of developmental dyslexia among Chinese children, with a pooled percentage of 44%. This is followed by orthographic knowledge deficits (43%), phonological awareness deficits (41%), morphological awareness deficits (40%), visual and motor skills deficits (33%), and short-term memory and working memory deficits (25%). At the same time, we compared the proportions of different locations, ages, standards and control groups.

It has been suggested that orthographic transparency and age changes may affect the relationship between visual attention span (VAS) deficit and reading difficulty. The present study explored the developmental trend of VAS in children with developmental dyslexia (DD) in Chinese, a logographic language with a deep orthography. Fifty-seven Chinese children with DD and fifty-four age-matched normal readers participated. The visual 1-back task was adopted to examine VAS. Phonological and morphological awareness tests, and reading tests in single-character and sentence levels were used for reading skill measurements. Results showed that only high graders with dyslexia exhibited lower accuracy than the controls in the VAS task, revealing an increased VAS deficit with development in the dyslexics. Moreover, the developmental trajectory analyses demonstrated that the dyslexics seemed to exhibit an atypical but not delayed pattern in their VAS development as compared to the controls. A correlation analysis indicated that VAS was only associated with morphological awareness for dyslexic readers in high grades. Further regression analysis showed that VAS skills and morphological awareness made separate and significant contributions to single-character reading for high grader with dyslexia. These findings suggested a developmental increasing trend in the relationship between VAS skills and reading (dis)ability in Chinese.

The effect of a morphological awareness intervention on the morphological awareness and literacy skills of students from low socioeconomic status homes was investigated. A 9-week intervention designed to increase awareness of affixes and the relations between base words and their inflected and derived forms was conducted with students in kindergarten (n = 19), 1st grade (n = 21), and 2nd grade (n = 21). Groups of 4-5 students were provided with instruction 4 times a week for 25 min a day. Results showed medium to very large clinically significant gains in morphological awareness and literacy abilities (ds = 0.29-2.96) across all participants. The results of this feasibility study suggest that morphological awareness instruction that requires students to analyze, recognize, orally produce, and determine the spelling patterns of multimorphemic words leads to therapeutic effects within a population of young students who are at risk for future reading difficulties. Initial clinical implications, limitations of the study, and research suggestions are discussed.