Correction: Global TALES feasibility study: Personal narratives in 10-year-old children around the world.

[This corrects the article DOI: 10.1371/journal.pone.0273114.].

The grammaticality judgement of inflectional morphology in children with and without Developmental Language Disorder.

To explore the clinical potential of grammaticality judgement tasks, this study investigated whether a Grammaticality Judgment Task (GJT) of inflectional morphology could differentiate between a clinically selected sample of children with DLD and children in mainstream (i.e. regular education) schools. We also explored the relationship between grammaticality judgement and measures of receptive vocabulary, receptive grammar, and nonword repetition. Children with DLD (n = 30; age range = 69-80 months) and mainstream children in Pre-primary, Year 1, and Year 2 (n = 89, age range = 61-96 months) were assessed on a GJT of regular past tense, third person singular, and possessive 's. The GJT was sensitive to developmental differences in mainstream children and differentiated children with DLD from Year 1 and 2 mainstream children, with DLD results consistent with a one-year delay in performance compared to controls. The GJT was the strongest discriminator of membership to a clinically selected sample of children with DLD (ROC curve analysis, area under the curve = 88%). Receptive grammar, receptive vocabulary, and nonword repetition were related to performance on the GJT. The grammaticality judgement of inflectional morphology shows promise as a reliable indicator of DLD and a measure sensitive to developmental differences in mainstream children. GJTs should continue to be explored for clinical application as a potential tool for both assessment and intervention.

Children's Use of Evaluative Devices in Response to the Global TALES Protocol.

INTRODUCTION: It has been well established that the function of sharing personal narratives is to inform the listener about what the event meant to the narrator, for example, by using a range of evaluative devices. The use of these evaluative devices may reflect a person's understanding of the differences between one's own mind and others, by expressing their beliefs, emotions, thoughts, and desires. This paper investigates children's use of evaluative devices when producing personal narratives in response to the six emotion-based prompts contained in the Global TALES protocol (excited, worried, annoyed, proud, problem situation, something important). It addresses three research questions: (1) What types and proportions of evaluative devices do 10-year-old English-speaking children use in response to the six prompts contained in the Global TALES protocol and are there differences in performance between boys and girls? (2) What are the correlations between the different types of evaluative devices? (3) Does children's use of evaluative devices differ depending on the type of prompt used? METHODS: Eighty-two native English-speaking ten-year-old children from three English-speaking countries (Australia, New Zealand, and the USA) participated. None of the children had been identified with language and/or learning difficulties. Children's personal narratives were transcribed and analysed for the use of 12 evaluative devices: compulsion, internal emotional states, evaluative words, intensifiers, mental states, causal explanations, hypotheses, objective judgements, subjective judgements, intent, negatives, and repetition. RESULTS: Results showed that children use a high number of evaluative devices, with "intensifiers" and "evaluative words" used most frequently. There were few effects for sex, apart from girls using a wider range of evaluative devices than boys. We found moderate to large correlations between most devices, with factor analysis revealing three factors we labelled "causality," "hypothesis," and "judgement." Although there were significant overall effects for prompt type on the use of evaluative devices, there was no clear pattern when inspecting responses to individual prompts. CONCLUSION: The results from this study shed light on children's use of evaluative devices to convey the meaning of their personal narratives in response to six different prompts tapping into different emotions. Moving beyond appraising children's structural language skills when narrating their personal experiences may enhance the understanding of interpersonal and intrapersonal aspects of theory of mind, which may inform clinical practices, such as individualized goal setting and intervention choices.

An international survey of assessment and treatment practice for discourse in paediatric Acquired Brain Injury.

PURPOSE: Guidelines recommend routine discourse assessment and treatment in paediatric acquired brain injury (ABI) but provide little guidance for clinical practice. The degree to which this has influenced the nature of discourse assessment and treatment in clinical practice has not been examined in detail. METHOD: Speech-language pathologists working in paediatric ABI (clients aged <18 years) in Australia, New Zealand, the UK, the USA, Canada, and the Asia Pacific region were invited to complete a survey of discourse assessment and intervention practices (n = 77). RESULT: Clinicians from Australia and New Zealand comprised over half of a responses (53%). The largest proportion had over 10 years' experience (60%), worked in the metropolitan area (58%), and with secondary school-age children (64%). Routine discourse assessment was undertaken by 80% of respondents, focussing on a limited range of genres. No preferred intervention approach was identified. One-quarter of clinicians routinely considered holistic factors during clinical decision-making. Limited normative data and treatment evidence, insufficient time and training were identified as clinical barriers. CONCLUSION: Assessment practices were consistent with guidelines, yet interventions were highly variable, reflecting limited evidence, client heterogeneity, time constraints, and limited training. A biopsychosocial approach to practice was evident, yet a focus on impairment level factors was prominent. Findings support the need for standardised discourse assessment and discourse intervention methods. Translation into practice guidelines would promote consistency and confidence in clinical practice.

Assessing children's vocabulary: An exploratory cross-sectional survey of speech-language pathologists.

Purpose: Past research highlights the importance of evaluating word learning abilities to build understanding of an individual's language-learning capacity and make evidence-informed decisions in speech-language pathology practice. However, little research has explored vocabulary and word learning assessment practices among speech-language pathologists (SLPs). This pilot, exploratory study aimed to explore current assessment practices and guide translation of research to practice among SLPs who work with children of all ages.Method: SLPs (N = 127) from three predominantly English-speaking countries (Australia, USA, and UK) completed an online survey. The survey explored methods and purposes for assessing vocabulary knowledge and word learning skills via binary and multiple-choice questions. Responses to three open-ended questions were analysed using conventional content analysis. The survey also asked about perspectives regarding assessment practices with individuals from culturally and linguistically diverse (CALD) backgrounds.Result: Of the surveyed SLPs, 118 (92%) reported using norm-referenced measures of vocabulary, with 27 reporting additional use of non-normed measures. Seventy-seven SLPs (61%) reported that they measure word learning skills, and 20 of these SLPs used dynamic assessment procedures to evaluate word learning. Responding SLPs across all three countries reported using vocabulary and word learning assessment data in a variety of ways (e.g. to support diagnostic decision-making). Regarding the use of standardised, norm-referenced vocabulary assessments with individuals from CALD backgrounds, SLPs reported concerns regarding poor cultural sensitivity and limited access to alternative methods.Conclusion: The findings highlight the need for further development and dissemination of accessible resources to support SLPs' implementation of word learning assessment, including resources for dynamic assessment. This is especially critical considering the established limitations associated with using standardised, norm-referenced tests with minority groups who are underrepresented in standardisation samples.

Global TALES feasibility study: Personal narratives in 10-year-old children around the world.

Personal narratives make up more than half of children's conversations. The ability to share personal narratives helps build and maintain friendships, promotes physical and emotional wellbeing, supports classroom participation, and underpins academic success and vocational outcomes. Although personal narratives are a universal discourse genre, cross-cultural and cross-linguistic research into children's ability to share personal narratives is in its infancy. The current study addresses this gap in the research by developing the Global TALES protocol, a protocol comprising six scripted prompts for eliciting personal narratives in school-age children (excited, worried, annoyed, proud, problem situation, something important). We evaluated its feasibility with 249 ten-year-old children from 10 different countries, speaking 8 different languages, and analyzed researchers' views on the process of adapting the protocol for use in their own country/language. At group-level, the protocol elicited discourse samples from all children, although individual variability was evident, with most children providing responses to all six prompts. When investigating the topics of children's personal narratives in response to the prompts, we found that children from around the world share many commonalities regarding topics of conversation. Once again individual variability was high, indicating the protocol is effective in prompting children to share their past personal experiences without forcing them to focus on one particular topic. Feedback from the participating researchers on the use of the protocol in their own countries was generally positive, although several translation issues were noted. Based on our results, we now invite clinical researchers from around the world to join us in conducting further research into this important area of practice to obtain a better understanding of the development of personal narratives from children across different languages and cultures and to begin to establish local benchmarks of performance.

Acquisition of Tok Pisin phonology in the multilingual highlands of Papua New Guinea.

Purpose: Papua New Guinea (PNG) has extreme linguistic diversity reflected in its three national languages and sociolinguistic diversity comprising over 380 vernaculars or Tokples, English and the lingua francas, which include Tok Pisin (TP). This first clinical cross-sectional study of consonant acquisition in TP-speaking children sought to identify universal features and the impact of age on phonological development.Method: A local picture naming task was developed and used to elicit a speech sample from 80 children (aged 3;0-6;11). Phonetic and phonemic inventories and developmental phonological processes were analysed across the sample and also in 12-month age groups.Result: Statistically significant differences were found between the Percentage Consonants Correct (PCC) of the 3YO and other age groups. Mean PCC increased with age, but high variation within age groups meant differences were not statistically significant. Universal features observed included the early acquisition of plosives and late mastery of /r/. Language-specific features included processes such as fricatisation and earlier acquisition of /ʤ/ before /s/. Creolisation was seen in morphophonemic condensation and the influence of loanwords.Conclusion: This study demonstrates both universal and language-specific features amidst wide diversity influencing phonological acquisition in creolising TP. This first phonological study of TP consonant development will inform future clinical speech-language pathology practice in PNG.

A profile of expressive inflectional morphology in early school-age children with developmental language disorder.

Previous research has established that children with developmental language disorder (DLD) have difficulties producing inflectional morphology, in particular, finiteness marking. However, other categories of inflectional morphology, such as possessive 's nominal inflection remain relatively unexplored. Analyses of the characteristics for marking inflection, such as allomorphic categories, may increase our understanding of patterns within disordered grammar to inform the design of interventions and target selection. Data from n = 30 early school-aged children (M = 75 months, SD = 3.38, range = 69-81 months) with DLD were analysed to develop a profile of inflectional morphology skills. Morphological categories included expressive regular past tense, third person singular, and possessive 's. Skills were profiled using an elicitation task. The relationships between expressive morphosyntax, and phonological short-term memory and working memory were also explored. Children demonstrated low accuracy in performance across all inflectional categories, including possessive 's. There were no significant differences between productions of different morphemes, but syllabic allomorphs ([əd]; [əz]) were produced with significantly lower accuracy than segmental allomorphs ([d], [t]; [z], [s]) across all morphological categories. All correlations between expressive morphosyntax and measures of memory were non-significant. Children with DLD show broad deficits in the ability to mark for inflection, including possessive 's; this has implications for theories explaining DLD. Findings may contribute to the design of urgently needed interventions for this clinical population.

Evaluating two different dose frequencies and cumulative intervention intensities to improve past tense production for early school-aged children with developmental language disorder.

AIMS: This study compared two dose frequency conditions of an explicit intervention with 50 trials per session designed to improve past tense marking in early school-aged children with developmental language disorder (DLD). The influence of allomorphs on intervention effects was also examined. METHODS: Data from previously conducted intervention studies were combined and analysed. Participants included nine children (mean age = 6;5 years) who received 20-30-min intervention sessions provided twice per week for 10 weeks (1000 trials; 400-600 min) and 20 children (mean age = 6;6) who received 20-30-min intervention sessions provided once per week for 10 weeks (500 trials; 200-300 min). Repeated measures included criterion-referenced probes for production of untrained past tense verbs collected throughout baseline, intervention, and maintenance phases. The rate of progress in each phase was analysed using logistic regression. The proportion of participants who produced past tense allomorphs correctly at pre-intervention, post-intervention, and maintenance testing points was analysed. RESULTS: Logistic regression showed a stable baseline, highly significant progress during the intervention phase, and a marginally significant shallow decline during the maintenance phase. Those in the twice per week group showed a greater rate of progress during the intervention phase leading to significantly higher scores in the maintenance period when compared with the once per week group. The allomorphic category of past tense verbs did not appear to influence outcomes. CONCLUSIONS: Participants receiving intervention twice per week appeared to demonstrate a greater rate of progress with intervention than those receiving it once per week, although once per week was also effective. However, these results should be interpreted with caution. Limitations to study design indicate that a larger randomised controlled trial is required. All past tense allomorphs improve to a similar degree when treated with this intervention. WHAT THIS PAPER ADDS: What is already known on the subject Understanding the parameters of dosage and intensity are important for clinical practice. Research evaluating the efficacy and/or effectiveness of interventions delivered in different dose/intensity conditions is scarce. There appears to be different interpretations of what constitutes dosage and intensity in published research. What this paper adds to existing knowledge This study retrospectively compared dosage and intensity conditions of intervention provided twice per week to intervention provided once per week. Both dose frequencies could be delivered in clinical settings. Results from this study were analysed by grouping data from multiple testing points, rather than comparing pre-post results. This approach demonstrated the variability of individual performance that would otherwise be lost with conventional methods of analysis. This study demonstrated that all past tense allomorphs improve to a similar degree when treated with this intervention. What are the potential or actual clinical implications of this work? Parameters of dosage and intensity are still not clearly defined well enough for translation to clinical practice. In consideration of current research, this intervention may be more effective if delivered twice per week. If clinicians are treating past tense, all allomorphs should be considered as priorities for intervention targets.

The influence of genre on adolescent discourse skills: Do narratives tell the whole story?

Purpose: Narrative is the dominant focus of traditional standardised discourse assessment, yet the complex discourse needs of adolescence has led to increased interest in profiling skills in other monologic genres for this age group. This interest is not commensurate with a robust understanding of the influence of genre on adolescent discourse across word to whole-text language features. This knowledge is important to inform context(s) for assessment to profile strengths and weaknesses in discourse-level language.Method: One hundred and sixty adolescents between 12 and 15 years (M= 13;1, SD= 1;1, 55% female, 45% male) completed the Curtin University Discourse Protocol - Adolescent. Samples of recount, narrative, expository and persuasive discourse were coded using a multi-level analysis procedure.Result: Genre had a significant influence on language variables regardless of age. Narrative tasks citied the longest, most lexically diverse, cohesive, coherent and well-structured output. Results were consistent with the oral to literate continuum and the order in which genres are introduced in the academic curriculum.Conclusion: Structure, content and domain-specific knowledge likely influenced the genre-related differences seen in this study. It would be advantageous to sample a range of monologic genres when assessing adolescent discourse. Declarative knowledge may be an important consideration in topic selection.

Piloting 'Clever Kids': A randomized-controlled trial assessing feasibility, efficacy, and acceptability of a socioemotional well-being programme for children with dyslexia.

Children with dyslexia are at elevated risk of internalizing (emotional) and externalizing (behavioural) problems. Clever Kids is a nine-week socioemotional well-being programme developed specifically for upper primary school children with dyslexia. In a small randomized-controlled trial, we tested the feasibility, efficacy, and acceptability of the Clever Kids programme. 'Forty children (Mage  = 10.45 years, 65% male) with clinically diagnosed dyslexia too part in the study. Children were randomized to either attend Clever Kids (n = 20) or to a wait-list control condition (n = 20). Coping skills, self-esteem, resilience, emotion regulation, and internalizing and externalizing symptoms were measured at pre-programme, post-programme, and at three-month follow-up. Recruitment and retention rates indicate high feasibility for further evaluation of the programme. There was a significant interaction between intervention condition and time for non-productive coping [F(2, 76) = 4.29, p = 0.017, f2  = 0.11]. Children who attended Clever Kids significantly reduced their use of non-productive coping strategies, and this was maintained at three-month follow-up assessment. For all other outcomes, the interactions between intervention condition and time were non-significant. The programme appears acceptable to children with dyslexia and their families, but may be improved by further reducing the number of activities involving reading and writing. Clever Kids improved the coping skills of children with dyslexia; however, a larger trial is needed to replicate this finding and investigate whether programme attendance is associated with additional improvements in children's socioemotional well-being.

The Efficacy of an Explicit Intervention Approach to Improve Past Tense Marking for Early School-Age Children With Developmental Language Disorder.

Purpose The aim of the study was to evaluate the efficacy of a theoretically motivated explicit intervention approach to improve regular past tense marking for early school-age children with developmental language disorder (DLD). Method Twenty-one children with DLD (ages 5;9-6;9 [years;months]) were included in a crossover randomized controlled trial (intervention, n = 10; waiting control, n = 11). Intervention included once-weekly sessions over 10 weeks using the SHAPE CODING system, in combination with a systematic cueing hierarchy to teach past tense marking. Once the first group completed intervention, the waiting control group crossed over to the intervention condition. The primary outcome was criterion-referenced measures of past tense marking with standardized measures of expressive and receptive grammar as the secondary outcome. Ancillary analyses on extension and behavioral control measures of morphosyntax were also conducted. Results There was a significant Time × Group interaction (p < .001) with a significant difference in pre-post intervention improvement in favor of the intervention group (p < .001, d = 3.03). Further analysis once both groups had received the intervention revealed no improvement for either group on past tense production during the 5-week pre-intervention period, significant improvement pre-post intervention (p < .001, d = 1.22), with gains maintained for 5 weeks postintervention. No significant differences were found on pre- to postintervention standardized measures of grammar, or on extension or control measures. Conclusions The efficacy of the theoretically motivated explicit grammar intervention was demonstrated. Results contribute to the evidence base supporting this intervention to improve past tense production in early school-age children with DLD, suggesting it is a viable option for clinicians to select when treating morphosyntactic difficulties for this population. Supplemental Material https://doi.org/10.23641/asha.13345202.

Profiling variability and development of spoken discourse in mainstream adolescents.

Competence in spoken discourse is an important consideration during assessment and intervention planning for adolescents with communication difficulties. Currently, a lack of age-appropriate protocols and reference data against which to interpret performance, are barriers when working with this population, particularly those that assess a range of genre and language features. Using a new assessment tool, the Curtin University Discourse Protocol-Adolescent (CUDP-A), this study aimed to collect and describe spoken discourse samples from a large group of adolescents (n = 160), aged 12 to 15 years, recruited to represent a mainstream academic cohort. For each participant, samples of recount (n = 3), expository (n = 3), persuasive (n = 3), and narrative (n = 2) discourse were described using theoretically supported measurements sensitive to micro-linguistic, micro-structural, macro-structural, and super-structural discourse features. Participants also completed a standardized assessment of oral language. Variability was found in micro-linguistic and micro-structural features, with stability seen in macro-structural and super-structural features. Few age- and gender-related differences were observed, while multiple significant correlations between spoken discourse and oral language variables were revealed across the sample. The CUDP-A was successful in eliciting spoken discourse across genres relevant to social and academic contexts, enabling an in-depth description of adolescent discourse. This tool, supported by the reference data, provides a new opportunity to assess spoken discourse skills in adolescents from clinical populations, e.g., acquired brain injury or developmental disorders. Further research is needed to examine factors influencing discourse ability, such as those that may be related to genre, or contextual factors related to the presence of communication partners, with novel tools such as the CUDP-A facilitating this.

Word learning and verbal working memory in children with developmental language disorder.

Background and aims: Previous research into word learning in children with developmental language disorder (DLD) indicates that the learning of word forms and meanings, rather than form-referent links, is problematic. This difficulty appears to arise with impaired encoding, while retention of word knowledge remains intact. Evidence also suggests that word learning skills may be related to verbal working memory. We aimed to substantiate these findings in the current study by exploring word learning over a series of days. Methods: Fifty children with DLD (mean age 6; 11, 72% male) and 54 age-matched typically developing (TD) children (mean age 6; 10, 56% male) were taught eight novel words across a four-day word learning protocol. Day 1 measured encoding, Days 2 and 3 measured re-encoding, and Day 4 assessed retention. At each day, word learning success was evaluated using Naming, Recognition, Description, and Identification tasks. Results: Children with DLD showed comparable performance to the TD group on the Identification task, indicating an intact ability to learn the form-referent links. In contrast, children with DLD performed significantly worse for Naming and Recognition (signifying an impaired ability to learn novel word forms), and for Description, indicating problems establishing new word meanings. These deficits for the DLD group were apparent at Days 1, 2, and 3 of testing, indicating impairments with initial encoding and re-encoding; however, the DLD and TD groups demonstrated a similar rate of learning. All children found the retention assessments at Day 4 difficult, and there were no significant group differences. Finally, verbal working memory emerged as a significant moderator of performance on the Naming and Recognition tasks, such that children with DLD and poor verbal working memory had the lowest levels of accuracy. Conclusions: This study demonstrates that children with DLD struggle with learning novel word forms and meanings, but are unimpaired in their ability to establish new form-referent links. The findings suggest that the word learning deficit may be attributed to problems with encoding, rather than with retention, of new word knowledge; however, further exploration is required given the poor performance of both groups for retention testing. Furthermore, we found evidence that an impaired ability to learn word forms may only be apparent in children who have DLD and low levels of verbal working memory. Implications: When working with children with DLD, speech-language pathologists should assess word learning using tasks that evaluate the ability to learn word forms, meanings, and form-referent links to develop a profile of individual word learning strengths and weaknesses. Clinicians should also assess verbal working memory to identify children at particular risk of word learning deficits. Future research should explore the notion of optimal intervention intensity for facilitating word learning in children with poor language and verbal working memory.

Working, Declarative, and Procedural Memory in Children With Developmental Language Disorder.

Purpose Previous research into the working, declarative, and procedural memory systems in children with developmental language disorder (DLD) has yielded inconsistent results. The purpose of this research was to profile these memory systems in children with DLD and their typically developing peers. Method One hundred four 5- to 8-year-old children participated in the study. Fifty had DLD, and 54 were typically developing. Aspects of the working memory system (verbal short-term memory, verbal working memory, and visual-spatial short-term memory) were assessed using a nonword repetition test and subtests from the Working Memory Test Battery for Children. Verbal and visual-spatial declarative memory were measured using the Children's Memory Scale, and an audiovisual serial reaction time task was used to evaluate procedural memory. Results The children with DLD demonstrated significant impairments in verbal short-term and working memory, visual-spatial short-term memory, verbal declarative memory, and procedural memory. However, verbal declarative memory and procedural memory were no longer impaired after controlling for working memory and nonverbal IQ. Declarative memory for visual-spatial information was unimpaired. Conclusions These findings indicate that children with DLD have deficits in the working memory system. While verbal declarative memory and procedural memory also appear to be impaired, these deficits could largely be accounted for by working memory skills. The results have implications for our understanding of the cognitive processes underlying language impairment in the DLD population; however, further investigation of the relationships between the memory systems is required using tasks that measure learning over long-term intervals. Supplemental Material https://doi.org/10.23641/asha.13250180.

The information score as a measure of oral discourse comprehension in the early school years.

Purpose: Oral discourse comprehension is a fundamental skill that is predictive of future reading comprehension. The ability to identify important semantic propositions, in a narrative text, and their attachment to a mental model is an essential component of discourse comprehension. This study aimed to pilot a measure of free-recall in a narrative retell across three age groups to explore development. A secondary aim compared measures of free-recall and cued-recall.Method: One hundred and thirty-two (132) typically developing children aged 4-7 years provided a retell of the Squirrel Story narrative and completed the Narrative Comprehension Assessment (NCA). The Squirrel Story Information Score (SSIS) was used as a novel measure of free-recall calculated from the narrative retells. The NCA, which involves literal and inferential comprehension questions, was used as a measure of cued-recall. Scoring reliability was calculated to ensure test-retest validity.Result: Correlation analysis found excellent reliability of the SSIS measure. The difference between 4 and 5 year olds, and 5 and 6 year olds, was significant, with a large effect size. The difference between the 5 and 6 year olds was not significant. A large positive correlation was found between the measures of SSIS and NCA.Conclusion: The measure of SSIS proved sensitive to developmental progression, with a positive relationship found between the measures of free-recall and cued-recall. Variability between the measures highlights the need to consider both measures to ensure an accurate representation of discourse comprehension skills.

Speech production in young children with tongue-tie.

INTRODUCTION: Tongue-tie, or ankyloglossia, occurs in 4-10% of the population. Treatment of tongue-tie has increased by 420% in Australia between 2006 and 2016 and 866% in the United States between 1997 and 2012. Despite limited evidence, it has been suggested that tongue-tie can result in speech sound disorder (SSD). This study aimed to investigate tongue mobility and speech production outcomes in children with and without tongue-tie diagnoses. METHOD: Fifty-nine children aged 2; 1 to 4; 11 years were recruited and formed three groups: treated tongue-tie (TTT), untreated tongue-tie (UTT) and no tongue-tie (NTT). Measures of lingual frenulum structure and function, tongue mobility, speech production, and parent and clinician intelligibility ratings were collected. RESULTS: No statistically significant differences were found between the TTT, UTT and NTT groups for tongue mobility, speech production or intelligibility. Significantly more UTT children had a history of speech pathology attendance than participants in the NTT group. CONCLUSION: This study provides preliminary evidence of no difference between tongue mobility and speech outcomes in young children with or without intervention for tongue-tie during infancy. This study assists with clinical decision making and makes recommendations for families not to proceed with surgical intervention for tongue-tie during infancy, for the sole outcome of improving speech production later in life.

Explicit Grammar Intervention in Young School-Aged Children With Developmental Language Disorder: An Efficacy Study Using Single-Case Experimental Design.

Purpose This study evaluated the efficacy of an explicit, combined metalinguistic training and grammar facilitation intervention aimed at improving regular past tense marking for nine children aged 5;10-6;8 (years;months) with developmental language disorder. Method This study used an ABA across-participant multiple-baseline single-case experimental design. Participants were seen one-on-one twice a week for 20- to 30-min sessions for 10 weeks and received explicit grammar intervention combining metalinguistic training using the SHAPE CODING system with grammar facilitation techniques (a systematic cueing hierarchy). In each session, 50 trials to produce the target form were completed, resulting in a total of 1,000 trials over 20 individual therapy sessions. Repeated measures of morphosyntax were collected using probes, including trained past tense verbs, untrained past tense verbs, third-person singular verbs as an extension probe, and possessive 's as a control probe. Probing contexts included expressive morphosyntax and grammaticality judgment. Outcome measures also included pre-poststandard measures of expressive and receptive grammar. Results Analyses of repeated measures demonstrated significant improvement in past tense production on trained verbs (eight of nine children) and untrained verbs (seven of nine children), indicating efficacy of the treatment. These gains were maintained for 5 weeks. The majority of children made significant improvement on standardized measures of expressive grammar (eight of nine children). Only five of nine children improved on grammaticality judgment or receptive measures. Conclusion Results continue to support the efficacy of explicit grammar interventions to improve past tense marking in early school-aged children. Future research should aim to evaluate the efficacy of similar interventions with group comparison studies and determine whether explicit grammar interventions can improve other aspects of grammatical difficulty for early school-aged children with developmental language disorder. Supplemental Material https://doi.org/10.23641/asha.11958771.

The evaluation of word-learning abilities in people with developmental language disorder: a scoping review.

BACKGROUND: The ability to learn new words is critical in the development of oral and written language, and significantly impacts engagement in social, academic and vocational situations. Many studies have evaluated the word-learning process in people with developmental language disorder (DLD). However, methodologies for assessment are heterogeneous, creating difficulties in synthesizing findings and identifying gaps in the knowledge base. AIMS: To scope systematically the literature and identify key methodological parameters considered in evaluations of word learning in people with DLD; and to identify gaps in the literature to guide further research in this area. METHODS & PROCEDURES: Twelve databases were searched and a total of 70 studies that met eligibility criteria were identified. The studies were evaluated according to key parameters that researchers varied in their word-learning methodologies. MAIN CONTRIBUTION: Most research has focused on word learning in the oral modality, and specifically in children with DLD. Fewer studies have explored word learning in adults and adolescents with DLD, and in the written modality. Depending on the research question and theoretical perspective driving the investigation, methodologies for assessing word learning considered a range of parameters, including words being learned, learning context and cues to support learning in the tasks. CONCLUSIONS & IMPLICATIONS: This review aggregates a variety of methods used previously to assess word learning. Findings highlight the need for further research to explore areas such as: the learning of varied word types (e.g., adjectives and adverbs); learning in the written modality; and word learning (both oral and written) in adolescents and adults with DLD.

Oral literal and inferential narrative comprehension in young typically developing children and children with developmental language disorder.

Purpose: The Squirrel Story Narrative Comprehension Assessment (NCA) was used to investigate the literal and inferential comprehension skills of young typically developing (TD) children aged between 4 and 6 years and to compare the performance of 5-year-old TD children and those with developmental language disorder (DLD). Method: A total of 132 typically developing children across three age groups between 4 to 6 years (4;0-4;11, 5;0-5;11, 6;0-6;11, years;months), and 94 children with DLD aged 5 years, were assessed using the NCA. Result: There was a significant increase in both literal and inferential scores for TD children from 4 to 6 years. The TD children aged 4;0 to 4;11 scored significantly lower than the two older age groups for both literal and inferential comprehension, while there was no significant difference between the 5;0 to 5;11 and 6;0 to 6;11 TD groups. The 5;0 to 5;11 TD group scored significantly higher than the age-matched DLD group for literal and inferential comprehension. Conclusion: The findings indicate that the Squirrel Story NCA is a clinically useful task which is sensitive to developmental improvement in literal and inferential comprehension in young typically developing children and confirm previous research findings of poor narrative comprehension in children with DLD.