Improving storytelling and vocabulary in secondary school students with language disorder: a randomized controlled trial

Exploring Speech-Language Pathologists' Perception of and Individualized Education Program Goals for Vocabulary Intervention With School-Age Children With Language Disorders

PURPOSE

Among the varied roles and responsibilities of school-based speech-language pathologists (SLPs) are the planning and delivery of effective vocabulary intervention for students with language disorders. Despite the abundant literature regarding effective vocabulary intervention, practice patterns indicate that the research has not yet translated to practice. The purpose of this study was to examine SLPs' beliefs and expectations regarding vocabulary instruction and the content of Individualized Education Program (IEP) goals to better inform continuing education and research programs to generate lasting effects on SLP practices.

METHOD

We queried a national sample of school-based SLPs via an online survey regarding their perspectives on robust vocabulary instruction, vocabulary intervention practices, and IEP goal development targeting vocabulary skills for school-age children with language disorders.

RESULTS

There was consistency across the sample for SLPs' beliefs about the importance and impact of robust vocabulary instruction. However, they reflected varied expectations about the vocabulary intervention they provide. Qualitative analysis of IEP goals for vocabulary reveals the range and frequency of strategies and intervention targets as an artifact of implementation of robust vocabulary instruction.

CONCLUSIONS

School-based SLPs believe that vocabulary is important and have a strong understanding of the impact robust vocabulary instruction can have on reading and writing outcomes. SLPs in this sample had varying expectations regarding the way their instruction is implemented and generalized. Implications and limitations of these results are discussed.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.25077992.

Oral language interventions can improve language outcomes in children with neurodevelopmental disorders: A systematic review and meta-analysis

Background

Young people who fail to develop language as expected face significant challenges in all aspects of life. Unfortunately, language disorders are common, either as a distinct condition (e.g., Developmental Language Disorder) or as a part of another neurodevelopmental condition (e.g., autism). Finding ways to attenuate language problems through intervention has the potential to yield great benefits not only for the individual but also for society as a whole.

Objectives

This meta-analytic review examined the effect of oral language interventions for children with neurodevelopmental disorders.

Search Methods

The last electronic search was conducted in April 2022.

Selection Criteria

Intervention studies had to target language skills for children from 2 to 18 years of age with Developmental Language Disorder, autism, intellectual disability, Down syndrome, Fragile X syndrome, and Williams syndrome in randomised controlled trials or quasi-experimental designs. Control groups had to include business-as-usual, waiting list, passive or active conditions. However, we excluded studies in which the active control group received a different type, delivery, or dosage of another language intervention. Eligible interventions implemented explicit and structured activities (i.e., explicit instruction of vocabulary, narrative structure or grammatical rules) and/or implicit and broad activities (i.e., shared book reading, general language stimulation). The intervention studies had to assess language skills in receptive and/or expressive modalities.

Data Collection and Analysis

The search provided 8195 records after deduplication. Records were screened by title and abstract, leading to full-text examinations of 448 records. We performed Correlated and Hierarchical Effects models and ran a retrospective power analysis via simulation. Publication bias was assessed via p-curve and precision-effect estimate.

Main Results

We examined 38 studies, with 46 group comparisons and 108 effects comparing pre-/post-tests and eight studies, with 12 group comparisons and 21 effects at follow-up. The results showed a mean effect size of d = 0.27 at the post-test and d = 0.18 at follow-up. However, there was evidence of publication bias and overestimation of the mean effects. Effects from the meta-analysis were significantly related to these elements: (1) receptive vocabulary and omnibus receptive measures showed smaller effect sizes relative to expressive vocabulary, grammar, expressive and receptive discourse, and omnibus expressive tests; and (2) the length of the intervention, where longer sessions conducted over a longer period of time were more beneficial than brief sessions and short-term interventions. Neither moderators concerning participants' characteristics (children's diagnosis, diagnostic status, age, sex, and non-verbal cognitive ability and severity of language impairment), nor those regarding of the treatment components and implementation of the language interventions (intervention content, setting, delivery agent, session structure of the intervention or total number of sessions) reached significance. The same occurred to indicators of study quality. The risk of bias assessment showed that reporting quality for the studies examined in the review was poor.

Authors’ Conclusions

In sum, the current evidence base is promising but inconclusive. Pre-registration and replication of more robust and adequately powered trials, which include a wider range of diagnostic conditions, together with more long-term follow-up comparisons, are needed to drive evidence-based practice and policy.

Effectiveness of intervention focused on vocational course vocabulary in post-16 students with (developmental) language disorder

BACKGROUND

People with language disorders (including developmental language disorder-DLD) often struggle to learn new words and, for young adults, this could affect their success in future work. Therefore, it is crucial to support their learning of career-specific vocabulary. However, little published evidence exists regarding the effectiveness of speech and language intervention for older adolescents and young adults with (developmental) language disorder (D)LD within a post-16 provision.

AIMS

To investigate whether for students with (D)LD in a post-16 environment, the addition of direct individual intervention from a speech and language therapist (SLT) teaching course-specific vocabulary leads to more progress than just in-course teaching on bespoke vocabulary measures.

METHODS & PROCEDURES

A total of 28 college-aged students (11 female and 17 male) with (D)LD (aged 16.0-19.9) participated in a within-participant study comparing progress with explicit vocabulary intervention plus in-course teaching versus in-course teaching alone. The participants were assessed at four time points (3 months pre-intervention, immediately pre- and post-intervention, 3.5 months after intervention) using bespoke vocabulary assessments with an equal number of nouns, verbs and adjectives. All participants received one-to-one vocabulary intervention from their usual SLT for 30 min per week for 9 weeks. The intervention had four main components: (1) to identify intervention focus, (2) to recap previously taught terms (using an online flashcard program), (3) to explicitly teach new words using word maps to help with: creating definition and pictorial representation, identification of word class and investigation of phonological and morphological properties, and (4) to add new words, with their definition and pictorial representation to online flashcard program.

OUTCOMES & RESULTS

The results showed a stable baseline, then during the intervention term significant progress on words targeted only in lessons and significantly greater progress on words targeted both in lessons and SLT sessions. Progress was maintained for 14 weeks. Individuals with initially lower scores showed smaller intervention effects. In general, performance was higher on verbs and on the definition recognition task and lower on the production tasks, but all tasks improved with intervention.

CONCLUSIONS & IMPLICATIONS

Direct one-to-one vocabulary intervention with an SLT can lead to significant gains in knowledge of course-specific terminology for college-aged students with (D)LD. The effectiveness of speech and language therapy services for this age group in a wider range of areas of language and social communication should also be investigated.

WHAT THIS PAPER ADDS

What is already known on this subject Very few services exist for young adults with DLD, despite their persisting language difficulties and the detrimental impact of these on their academic attainment and employment prospects. Most careers involve specific vocabulary which is crucial to executing a role successfully and these need to be learned by those looking to move into these careers. However, children, adolescents and adults with DLD struggle to learn new words and may need help in this area. What this study adds to existing knowledge The young adults with (D)LD received 9 weeks of intervention targeting individualized course-specific vocabulary (nouns, verbs and adjectives), using word maps to focus on word forms, definitions, morphologically related words and syntactic information such as word class and how to use the word in a sentence. An online learning tool provided regular spaced retrieval practice of previously taught words and their definitions. The participants showed significant progress with learning course-specific vocabulary from attending lessons. However, they made significantly greater progress on those words which were also targeted in individual SLT sessions, regardless of word class. Progress was maintained over 14 weeks. What are the potential or actual clinical implications of this work? Direct one-to-one vocabulary intervention with an SLT can lead to significantly greater gains in the acquisition of targeted course-specific terminology for young adults with (D)LD than the vocabulary teaching available in lessons. Individual intervention delivered by SLTs should therefore be offered to this age group of students with (D)LD to maximize their ability to access the academic curriculum and their future careers. Indeed, the broader role of SLTs in helping these young adults to access the world of work and independent living should be further investigated and supported.

Efficacy, model of delivery, intensity and targets of pragmatic interventions for children with developmental language disorder: A systematic review

BACKGROUND

It is widely acknowledged that children with developmental language disorder (DLD) predominantly have difficulties in the areas of grammar and vocabulary, with preserved pragmatic skills. Consequently, few studies focus on the pragmatic skills of children with DLD, and there is a distinct lack of studies examining the effectiveness of pragmatic interventions.

AIMS

To carry out a systematic review of the literature on pragmatic interventions for children with DLD.

METHODS & PROCEDURES

This systematic review was registered with PROSPERO (ID = CRD42017067239). A systematic search in seven databases yielded 1031 papers, of which 11 met our inclusion criteria. The included papers focused on interventions for children with DLD (mean = 3-18 years), enhancing oral language pragmatic skills, published between January 2006 and May 2020, and were based on a group-study design such as randomized control trial or pre-post-testing. Study participants were monolingual speakers. The quality of papers was appraised using the Cochrane Risk of bias tool for randomized controlled trials.

OUTCOMES & RESULTS

There was a high degree of variability between the included intervention studies, especially regarding intensity, intervention targets and outcomes. The evidence suggested that pragmatic intervention is feasible for all models of delivery (individual, small and large group) and that interventions for pragmatic language are mostly focused on encouragement of conversation and narrative skills observed through parent-child interaction or shared book-reading activities.

CONCLUSIONS & IMPLICATIONS

This study highlights the importance of promoting and explicitly teaching pragmatic skills to children with DLD in structured interventions. A narrative synthesis of the included studies revealed that in addition to direct intervention, indirect intervention can also contribute to improving oral pragmatic skills of children with DLD.

WHAT THIS PAPER ADDS

What is already known on the subject? An increasing number of studies have shown that difficulties in acquiring pragmatic language is not only present in children with autism. What this study adds to existing knowledge? Interventions for pragmatic language in children with DLD are mostly focused on encouragement of conversation and narrative skills, very often through parent-child interaction or shared book-reading activities. Interventions that target language pragmatic are feasible for all models of delivery (individual, small and large group). What are the potential or actual clinical implications of this work? The efficacy of the existing studies varies, and it is difficult to give recommendations regarding the intensity and duration of the specific intervention. In addition to offering pragmatic intervention directly from a specialist, pragmatic interventions can also be carried out indirectly if the intervention is under the continuous supervision of a specialist.

Clinical practices of speech-language pathologists working with 12- to 16-year olds in Australia

Purpose: The current landscape of speech-language pathology (SLP) services for 12- to 16-year olds in Australia remains largely unchartered. Implementing the Speech Pathology 2030 vision necessitates mapping current services, and gaps in services, provided by speech-language pathologists (SLPs). However, the last survey of Australian SLPs' practices with young people was conducted in 2005. The aim of this study was to bridge the service delivery information gap.Method: Ninety-six SLPs working with 12- to 16-year olds in Australia completed an anonymous online survey consisting of binary choice, multiple choice, and Likert scale questions. A theoretical approach to service delivery based on response to intervention models underpinned question design.Result: SLP clinical practices remain traditional, following an impairment/diagnostic model. Additionally, there is an inequitable provision of SLP services across states/territories of Australia, according to whether or not there is government provision for SLP services in public schools.Conclusion: The results suggest a need for standard government provision of SLP services across Australia to ensure equity of access. These findings inform our understanding of contemporary assessment and intervention practices of SLPs working with 12- to 16-year olds in Australia.

Oral language comprehension interventions in school-age children and adolescents with developmental language disorder: A systematic scoping review

BACKGROUND & AIMS

Difficulties understanding spoken language are associated with several social and academic risks in school-age children and adolescents with developmental language disorder (DLD). Still, interventions for this group have received little attention, and there are no reviews focusing on oral language comprehension interventions in school-age children and adolescents. The objective of this systematic scoping review was to identify interventions targeting oral language comprehension in school-age children and adolescents with DLD. Further, the aim was to examine the focus of intervention, efficacy, and level of evidence of the identified interventions. The present review is the second part of a larger search on oral language comprehension interventions. The first review examined the same factors in children 8 years and younger.

METHODS

A systematic scoping review of eight databases was conducted. Of the 2399 sourced articles, 12 met the inclusion criteria. Another 8 articles were identified through reference lists of sourced articles. In these 20 articles, containing 21 studies, 1661 children aged 5-16 years participated. The data were extracted and analysed, and the intervention focus, efficacy, and level of evidence were examined.Main contribution: In the interventions intended for school-age children and adolescents with DLD, three intervention foci were identified that targeted aspects of language and language processing, as well as modifying the communicative environment. Of the included studies, 57% reported positive results, 14% reported mixed results, and 29% reported no effects on oral language comprehension. The level of evidence varied. One can have high confidence in the results of 19%, moderate in 38%, and indicative confidence in 43% of the included studies.

CONCLUSIONS

Results of the present review suggest that there are a few interventions providing high confidence on the efficacy of improving oral language comprehension difficulties in school-age children and adolescents with DLD. Most interventions indicating efficacy provide moderate or indicative confidence in the results. More research with a high level of evidence is urgently needed. Most of the interventions indicating efficacy focused directly on language skills or modified the communicative environment. The results suggest that the therapy techniques focusing on improving language processing skills indicate efficacy only when they aim at compensating current language processing skills, not trying to improve them.Implications: The findings on different therapy techniques, their focus of intervention, efficacy, and level of evidence provide information for clinical practice and direct future investigations in this sparsely researched topic.