Narrative abilities of bilingual children with and without Developmental Language Disorder (SLI): Differentiation and the role of age and input factors

Bilingual Children Demonstrate Variation Within Shared Narrative Macrostructure

AIMS

We investigate the relationship between narrative macrostructure, current language exposure, and microstructure in second-grade Spanish-English bilingual children in the United States. Macrostructure knowledge has been claimed to be shared across languages in multilingual individuals. We examine the role of current language exposure and microstructure on macrostructure and how individual children organize their stories in English and Spanish. We use sociocultural theory to investigate differences in the macrostructural elements children choose to include in their stories by language.

METHODOLOGY

Using existing data, we used a two-sample t-test to compare average macrostructure and microstructure performance in English and Spanish in addition to performance on subcomponents of macrostructure. A correlational analysis was used to compare narrative performance in both languages. We used regression analysis to investigate to what extent current language exposure and microstructure influenced the macrostructure of 62 Spanish-English bilingual second graders' stories.

RESULTS

Children used more words and a greater variety of words in Spanish compared to English. However, they demonstrated comparable use of overall macrostructure across languages, in addition to variation in what macrostructure subcomponents they use by language of story elicitation. No statistically significant relationship was found between current language exposure and macrostructure, except for Spanish story structure. Correlational analysis revealed a significant relationship between macrostructure performance in English and Spanish. A significant relationship was found within languages between microstructure and macrostructure and across languages between Spanish microstructure and English internal state terms.

DISCUSSION

Findings are consistent with extant literature that claims macrostructure is shared across languages. Children require lexical diversity across languages to express their ideas organized within macrostructural elements. Although bilingual children tell comparably complex stories, they may be making culturally and linguistically specific decisions about what macrostructure components to include in their stories.

Word Learning in Bilingual Children at Risk for Developmental Language Disorder

PURPOSE

The purpose of this study was to compare the novel word learning skills between Cantonese-English bilingual children at risk for developmental language disorder (DLD) and their typically developing (TD) peers.

METHOD

Participants were 24 Cantonese-English bilingual preschool children at risk for DLD and 38 TD children. Each participant was presented with eight novel words in Cantonese (first language [L1]) and eight in English (second language [L2]) over eight weekly sessions. Children's existing lexical knowledge was measured using the moving-average number of different words in language samples in L1 and L2.

RESULTS

Bilingual children at risk for DLD were scored lower than their TD peers for both languages over time. The role of lexical knowledge in children's word learning differed between the TD and DLD groups: Lexical knowledge in L1 was a predictor of L1 word learning in TD children, while lexical knowledge in L2 predicted L2 word learning in children at risk for DLD. In addition, significant cross-linguistic effects were found from L2 to L1 for both groups.

CONCLUSIONS

This study underscores the complexity of novel word learning in bilingual children at risk for DLD. Clinically, these findings suggest the value of tracking learning trajectories in bilingual children across both languages.

The Use of Language Sample Analysis to Differentiate Developmental Language Disorder From Typical Language in Bilingual Children: A Systematic Review and Meta-Analysis

PURPOSE

Language sample analysis (LSA) is a commonly recommended method of assessment for bilingual children. This systematic review and meta-analysis provides a comprehensive overview of the literature on the use of LSA to differentiate between developmental language disorder (DLD) and typical language (TL) in bilingual children.

METHOD

We conducted a search of several large electronic databases along with forward and backward searches and applied abstract and full-text screening procedures to identify all relevant studies. We then estimated standardized mean differences, representing the ability of LSA to differentiate between DLD and TL, using multilevel model and subgroup and moderator analyses to identify characteristics of LSA that may be associated with differences in effect size magnitude. We conducted assessments of publication bias and risk of bias by examining quality indicators for each study.

RESULTS

The search yielded 35 articles that met the inclusion criteria. Participants ranged in age from 2;0 (years;months) to 11;9, with over 40 languages represented. Across studies, the pooled standardized mean difference indicated that children with DLD performed 0.78 SD lower on LSA measures than those with TL. Measures of morphosyntactic accuracy exhibited the largest pooled effect size. Elicitation method, language of task, and age were not associated with differences in effect size.

DISCUSSION

Results of this study provide evidence of the clinical utility of LSA in differentiating between DLD and TL in bilingual children. Further research is needed to examine classification accuracy as well as task characteristics that may improve its diagnostic utility.

A comparison of narrative abilities in Malay school-age typically developing children and children with developmental language disorder

Research on narrative skills in the Malay language is scarce for both typically developing (TD) and children with Developmental Language Disorders (DLD). This study examines the differences in narrative abilities of Malay-speaking school-age children with and without DLD. Fifteen Malay-speaking TD children and 15 children with DLD told four stories elicited using the Multilingual Assessment Instrument for Narrative (MAIN). Group comparisons were conducted in narrative production (story retelling and story generation) as well as in comprehension. We also examined the differences in both groups' story complexity (e.g. the combination of goals (G), attempts (A) and outcomes (O)). General microstructure features such as the total number of words (TNW), total number of sentences (TNS) and total number of different words (NDW) were also investigated. TD children outperformed children with DLD in both narrative production and comprehension performances. TD children constructed a higher combination of G, A, and O components than children with DLD. Children with DLD frequently produced G, A, and O in isolation in comparison to TD children. In language productivity and lexical complexity, TD children had a significantly higher frequency in TNW and NDW than children with DLD, resulting in longer narratives and higher uses of different words than children with DLD. Distinct differences are found in the narrative profile of TD children and children with DLD. The results are relatively consistent with the findings of similar studies that utilised and adapted the MAIN in other languages. Clinical implications and recommendations are discussed.

Beyond Language Scores: How Language Exposure Informs Assessment of Nonword Repetition, Vocabulary and Narrative Macrostructure in Bilingual Turkish/Swedish Children with and without Developmental Language Disorder

As in many other countries, baseline data concerning the linguistic development of bilingual children in Sweden are lacking, and suitable methods for identifying developmental language disorder (DLD) in bilinguals are lacking as well. This study presents reference data from 108 typically developing (TD) Turkish/Swedish-speaking children aged 4;0-8;1, for a range of language tasks developed specifically for the assessment of bilinguals (LITMUS test battery, COST Action IS0804). We report on different types of nonword repetition (NWR) tasks (language-specific and language-independent), receptive and expressive vocabulary (Cross-Linguistic Lexical Tasks, CLTs), and narrative macrostructure comprehension and production (Multilingual Assessment Instrument for Narratives, MAIN) in Turkish, the children's home language, and in Swedish, the language of schooling and society. Performance was investigated in relation to age, language exposure, type of task, and (for NWR and narratives) vocabulary size. There was a positive development with age for all tasks, but effects of language exposure and vocabulary size differed between tasks. Six bilingual Turkish/Swedish children with DLD were individually compared to the TD children. TD/DLD performance overlapped substantially, particularly for NWR, and more so for the production than the comprehension tasks. Surprisingly, the discriminatory potential was poor for both language-specific and language-independent NWR. DLD case studies underscored the importance of interpreting language scores in relation to exposure history, and the need for an increased emphasis on functional language skills as reported by parents and teachers when assessing and diagnosing DLD in bilinguals.

Zoti's Social Toolkit: Developing and piloting novel animated tasks to assess emotional understanding and conflict resolution skills in childhood

Current methods used to investigate emotional inference and conflict resolution knowledge are limited in their suitability for use with children with language disorders due to a reliance on language processing. This is problematic, as nearly 8% of the population are estimated to have developmental language disorder (DLD). In this paper, we present 'Zoti's Social Toolkit', a set of animated scenarios that can be used to assess emotion inferencing and conflict resolution knowledge. All animated scenarios contain interpersonal situations centred around a gender-neutral alien named Zoti. Four studies investigated the face and construct validity of the stimuli. The final stimulus set can be used with children, who may or may not have language difficulties and is openly available for use in research.

Diagnostic Accuracy of Grammaticality and Utterance Length in Bilingual Children

PURPOSE

The purpose of this study was to investigate the diagnostic accuracy of two measures derived from spontaneous language samples, mean length of utterance in words (MLUw) and percentage of grammatical utterances (PGU), in identifying developmental language disorder (DLD) in Spanish-English bilingual children. We examined two approaches: best language and total language.

METHOD

The participants in this study included 74 Spanish-English bilingual children with (n = 36) and without (n = 38) DLD. Language samples were elicited through a story retell and story generation task using Frog wordless picture books in English and Spanish. Stories were transcribed and coded using the Systematic Analysis of Language Samples (Miller & Iglesias, 2020) to extract MLUw and PGU in both languages.

RESULTS

Logistic regression analyses suggested that a model that included PGU, MLUw, and age achieved the best diagnostic accuracy in predicting group membership. Both approaches, best language and total language, had fair diagnostic accuracy.

CONCLUSIONS

In combination, PGU and MLUw seem to be useful diagnostic tools to differentiate bilingual children with and without DLD. Clinical implications and usability are discussed.

Impact of Narrative Task Complexity and Language on Macrostructure in Bilingual Kindergarten Children

PURPOSE

We investigated the impact of narrative task complexity on macrostructure in both languages of bilingual kindergarten children and the relationship of macrostructure across languages to guide practitioners' choice of assessment tools and aid in interpretation of results.

METHOD

Thirty-nine English-Hebrew bilingual kindergarten children (Mage = 65 months) retold two narratives in each language: a one-episode story and a three-episode story. Stories were coded for macrostructure using five story grammar (SG) elements: Internal State-Initiating Event, Goal, Attempt, Outcome, and Internal State-Reaction. Linear mixed and generalized linear mixed models were used to analyze scores for total macrostructure, episode, and SG elements; correlations were conducted to examine cross-language relations in macrostructure.

RESULTS

In general, performance on the single-episode story was significantly better than for the three-episode story: higher percentages of SG elements were produced, with better performance in the home language/English. In addition to Task and Language effects, Age and Episode (Episodes 1/2/3 of the three-episode story vs. one-episode story) emerged as predictors of macrostructure. Performance on the different episodes of the three-episode story varied, with Episode 3 yielding scores similar to those on the one-episode story. Children produced more Attempts and Outcomes than other SG elements. Finally, the total macrostructure scores yielded low to moderate correlations across languages for both one-episode and three-episode stories, but there were no significant cross-task (one-episode/three-episode story) correlations.

CONCLUSIONS

The study illustrates the importance of task complexity in narrative performance. Ideally, assessment should include a variety of tools, which would include narratives varying in complexity. However, time constraints do not always permit this luxury. The findings here may offer more to therapists than to diagnosticians. Narratives should be manipulated for episodic complexity not only in the number of episodes but also with regard to characters, goals, feelings, and reactions to events.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.25222094.

An Exploration of the Nature of Vocabulary Change Following Language and Literacy Together Intervention

PURPOSE

This exploratory study evaluates how bilingual first graders' vocabulary use in narrative changed after a Spanish-language intervention that focuses on connection between language and literacy.

METHOD

Ten Spanish-English bilingual first graders produced three English and three Spanish narratives based on the Test of Narrative Language protocol pre- and postintervention. All samples were transcribed. Based on comprehensive word inventories, all words produced by the children were identified as being core words; Tiers 1, 2, and 3 words; and/or cognates in both languages. We also coded all utterances for use of internal state terms (ISTs). We evaluated total and unique production of these kinds of words.

RESULTS

Postintervention children increased their total number of cognates and ISTs across languages. They also increased the unique core words, Tier 1 words, and cognates postintervention. They also used more of each of these kinds of words in Spanish-the language of intervention-than in English.

CONCLUSIONS

Children make qualitative changes to their vocabulary postintervention. There is greater change in the use of core words and Tier 1 words in Spanish. These increases in productivity and variability were indicated by the number of unique words added to the children's repertoires in ways that supported narrative production.

Age of onset, motivation, and anxiety as predictors of grammar and vocabulary outcomes in English as a foreign language learners with developmental language disorder

INTRODUCTION

Like children with typical language development, their peers with developmental language disorder (DLD) are expected to learn English as a foreign language (EFL). For pupils without DLD, it is well-established that amount of informal exposure to English outside of the classroom, starting age of EFL instruction and motivation are strong positive predictors of EFL learning rate and/or achievement, whereas anxiety is negatively related to performance. This paper is the first attempt to investigate how these predictors of EFL performance operate in learners with DLD.

METHODS

Participants were nineteen Dutch-speaking 7th graders with DLD learning English as a school subject at a specialist education facility in the Netherlands. English receptive grammar and receptive vocabulary were measured twice, with a four-month interval. Foreign language learning motivation, anxiety and (length and amount of) informal exposure to and instruction in English were measured via questionnaires.

RESULTS

The participants did not show any progress on English vocabulary and grammar. At Time 1, vocabulary and grammar scores were positively related to starting age of EFL instruction and negatively related to anxiety. For vocabulary, achievement was also positively predicted by attitudes towards English lessons. Only the relationship between starting age of instruction and vocabulary outcomes was visible at Time 2. Amount and length of informal exposure to English did not predict performance, which is in stark contrast to the patterns observed in EFL learners with typical language development.

CONCLUSIONS

We conclude that children with DLD benefit from a later onset of foreign language lessons, whereas length and amount of out-of-school exposure to English are less important in the context of DLD, possibly due to difficulty with implicit learning.

Dynamic Assessment of Narrative Skills for Identifying Developmental Language Disorder in Monolingual and Bilingual French-Speaking Children

Purpose:

Typically developing (TD) bilingual children usually produce narratives with preserved macrostructure (i.e., narrative scheme) but with impaired microstructure (i.e., language complexity). As for monolingual and bilingual children with developmental language disorder (DLD), they usually produce narratives with both impaired macro- and microstructure. It is therefore difficult to differentiate TD from DLD, on the basis of narrative production, especially in bilingual children. In this study, we examine whether a dynamic assessment (DA) task of narratives, using a pretest–teaching–posttest design, can differentiate TD from DLD, without disadvantaging bilinguals over monolinguals.

Method:

We recruited 118 French-speaking children ( M age = 8;5 [years;months]), with one experimental condition in which children benefited from a teaching phase (30 TD, 18 monolinguals and 12 bilinguals; 30 DLD, 15 monolinguals and 15 bilinguals) and one control condition (58 TD, 31 monolinguals and 27 bilinguals), in which children participated in another activity. In the pre- and posttest, children were asked to tell a story based on a series of pictures. During the teaching phase, an examiner asked children 12 specific questions about the story, targeting macro- and microstructural elements. Scores were attributed to the number of macro- and microstructural elements correctly produced and to the number of specific trained elements (TE) that were produced as a result of training.

Results:

Scores improved on macrostructure and on the number of TE following teaching for all groups of the experimental condition (TD and DLD), whereas there was no progress in children of the control condition. TD participants and participants with DLD differed on all measures in both pre- and posttest, with no differences between monolinguals and bilinguals.

Conclusions:

Our dynamic task led to both improved narrative skills and TD/DLD differentiation, with bilinguals not being disadvantaged. Our study thus supports the existing literature indicating that DA can be used to diagnose narrative deficits in children with DLD.

Sources of individual differences in the dual language development of heritage bilinguals

Bilingual children are a more heterogenous group than their monolingual counterparts with respect to the sources of variation in their language learning environments, as well as the wide individual variation in their language abilities. Such heterogeneity in both individual difference factors and language abilities argues for the importance of an individual differences approach in research on bilingual development. The main objective of this article is to provide a review and synthesis of research on the sources of individual differences in the second language (L2) and heritage language (HL) development of child bilinguals. Several child-internal and child-external individual difference factors are discussed with respect to their influence on children's dual language abilities. In addition, the emergent research on individual differences in bilingual children with developmental language disorder is reviewed. Both the theoretical and applied relevance of individual difference approaches to bilingual development are discussed.

Describing the Spoken Language Skills of Typically Developing Afrikaans-Speaking Children Using Language Sample Analysis: A Pilot Study

PURPOSE

Language sample analysis is widely regarded as the gold standard of language assessment. However, the uncertainty regarding the optimal length of sample and the limited availability of developmental language data for nonmainstream languages such as Afrikaans complicate reliable use of the method. The study aimed to provide guidelines on representative length of sample and concurrently provide a preliminary description of the spoken language skills of Afrikaans-speaking children.

METHOD

The study involved 30 typically developing Afrikaans-speaking children aged between 3;6 and 9;6 (years;months). A descriptive research design was used to transcribe and analyze 1-hr interactions collected in natural environments of participants who were recruited using referral sampling. Video and audio recordings of the samples were transcribed using adapted Sampling Utterances and Grammatical Analysis Revised analysis procedures.

RESULTS

Results indicated that mean length of utterance in words per minute, number of different words per minute, and total number of words per minute stabilized at 30 min and no significant differences were found between 30 min and longer time segments. Morphology results concur with existing developmental findings in Afrikaans. Lexical diversity results correlated with the findings of the lexical specificity and accuracy in the Prutting and Kirchner Pragmatic Protocol (Prutting & Kirchner, 1987). The developmental trajectories for pragmatic and phonological development were consistent with existing guidelines.

CONCLUSIONS

The study concluded that a 30-min interaction segment provides a representative language sample for Afrikaans-speaking children who are between 3;6 and 9;6. It provides promising preliminary developmental data and clinical guidelines, confirming the potential of language sample analysis (LSA) as a reliable component of language assessment in Afrikaans.

Macroestructura y microestructura narrativa en población infantil bilingüe con TDL: una revisión sistemática

La identificación de niños bilingües con Trastorno del Desarrollo del Lenguaje (TDL) es compleja, y la evaluación de la narración puede ser particularmente valiosa en este contexto. Por ello, el objetivo de este estudio es contribuir a sistematizar y difundir el creciente cuerpo de literatura que investiga las habilidades narrativas de población infantil bilingüe con TDL, a través de una revisión sistemática guiada por las siguientes preguntas: ¿Qué elementos a nivel de macroestructura y microestructura narrativa se han estudiado en la población infantil bilingüe con TDL? ¿Qué aspectos de la macroestructura y microestructura narrativa diferencian a los niños bilingües con TDL de los bilingües con desarrollo típico? ¿Qué aspectos de la macroestructura y microestructura narrativa diferencian a los bilingües con TDL de los monolingües con TDL? Se seleccionaron 25 artículos desde las bases de datos WoS y Scopus. En general, los resultados apuntan a un menor desempeño en la población tanto bilingüe como monolingüe con TDL en varias medidas de ambos niveles, aunque se considera que el núcleo del problema es la microestructura. Sin embargo, existen algunos resultados contradictorios, por lo que se incentiva continuar la investigación de características narrativas específicas en ambas lenguas con el propósito de encontrar marcadores clínicos que contribuyan a una mayor eficiencia en la evaluación de niños bilingües. Además, se sugiere que la evaluación narrativa se combine con otras medidas para aumentar la precisión diagnóstica de TDL.

Investigating Narrative Performance in Children With Developmental Language Disorder: A Systematic Review and Meta-Analysis

PURPOSE

Narrative assessment is one potentially underutilized and inconsistent method speech-language pathologists may use when considering a diagnosis of developmental language disorder (DLD). However, narration research encompasses many varied methodologies. This systematic review and meta-analysis aimed to (a) investigate how various narrative assessment types (e.g., macrostructure, microstructure, and internal state language) differentiate children with typical development (TD) from children with DLD, (b) identify specific narrative assessment measures that result in greater group differences, and (c) evaluate participant and sample characteristics that may influence performance differences.

METHOD

Electronic databases (PsycINFO, ERIC, and PubMed) and ASHAWire were searched on July 30, 2019, to locate studies that reported oral narrative language measures for both DLD and TD groups between ages 4 and 12 years; studies focusing on written narration or other developmental disorders only were excluded. We extracted data related to sample participants, narrative task(s) and assessment measures, and research design. Group differences were quantified using standardized mean differences. Analyses used mixed-effects meta-regression with robust variance estimation to account for effect size dependencies.

RESULTS

Searches identified 37 eligible studies published between 1987 and 2019, including 382 effect sizes. Overall meta-analysis showed that children with DLD had decreased narrative performance relative to TD peers, with an overall average effect of -0.82 SD, 95% confidence interval [-0.99, -0.66]. Effect sizes showed significant heterogeneity both between and within studies, even after accounting for effect size-, sample-, and study-level predictors. Across model specifications, grammatical accuracy (microstructure) and story grammar (macrostructure) yielded the most consistent evidence of TD-DLD group differences.

CONCLUSIONS

Present findings suggest some narrative assessment measures yield significantly different performance between children with and without DLD. However, researchers need to improve consistency of inclusionary criteria, descriptions of sample characteristics, and reporting of correlations between measures to determine which assessment measures reliably distinguish between groups.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.21200380.

Bilingual Mandarin-English preschoolers’ spoken narrative skills and contributing factors: A remote online story-retell study

This study examined the spoken narrative skills of a group of bilingual Mandarin–English speaking 3–6-year-olds (N = 25) in Australia, using a remote online story-retell task. Bilingual preschoolers are an understudied population, especially those who are speaking typologically distinct languages such as Mandarin and English which have fewer structural overlaps compared to language pairs that are typologically closer, reducing cross-linguistic positive transfer. We examined these preschoolers’ spoken narrative skills as measured by macrostructures (the global organization of a story) and microstructures (linguistic structures, e.g., total number of utterances, nouns, verbs, phrases, and modifiers) across and within each language, and how various factors such as age and language experiences contribute to individual variability. The results indicate that our bilingual preschoolers acquired spoken narrative skills similarly across their two languages, i.e., showing similar patterns of productivity for macrostructure and microstructure elements in both of their two languages. While chronological age was positively correlated with macrostructures in both languages (showing developmental effects), there were no significant correlations between measures of language experiences and the measures of spoken narrative skills (no effects for language input/output). The findings suggest that although these preschoolers acquire two typologically diverse languages in different learning environments, Mandarin at home with highly educated parents, and English at preschool, they displayed similar levels of oral narrative skills as far as these macro−/micro-structure measures are concerned. This study provides further evidence for the feasibility of remote online assessment of preschoolers’ narrative skills.

Effects of early foreign language instruction and L1 transfer on vocabulary skills of EFL learners with DLD

Research on second language learning by children with DLD has mainly focused on naturalistic L2 acquisition with plenty of exposure. Very little is known about how children with DLD learn foreign languages in classroom settings with limited input. This study addresses this gap and targets English as a foreign language (EFL) learning by Russian-speaking children with DLD. We ask whether learners with DLD benefit from a later onset of EFL instruction because older children are more cognitively mature and have more developed L1 skills. The second aim of this study is to determine whether EFL learners with DLD benefit from positive L1 transfer in vocabulary learning. We administered a receptive vocabulary test to younger (Grade 6, n = 18) and older (Grade 10, n = 15) children with DLD matched on the amount of prior EFL instruction. The younger group started EFL instruction in Grade 2 and the older group in Grade 6. The performance of the two groups was compared after four and a half years of English lessons. Half of the words in the test were English-Russian cognates and half were noncognates. Contra to our hypothesis, the results showed no difference between younger and older children. Both groups equally benefitted from cognate vocabulary suggesting that positive cross-language transfer is available to children with DLD, irrespective of their age and onset of EFL instruction.

Tell or Retell? The Role of Task and Language in Spanish-English Narrative Microstructure Performance

PURPOSE

This study examined performance of dual language learners (DLLs) on Spanish- and English-language narrative story retells and unique tells. Transcription and analysis focused on comparisons of common microstructural language sample measures in Spanish and English across tasks. Each language sample measure was evaluated for its possible convergence with norm-referenced standardized assessments for DLL children.

METHOD

Spanish-English DLLs (N = 133) enrolled in English-only kindergarten or first-grade classrooms completed two-language sample tasks (one in each language), which were transcribed and analyzed using Systematic Analysis of Language Transcripts (Miller & Iglesias, 2017) for measures of syntactic complexity (mean length of utterance [MLU] in words), lexical diversity (number of different words [NDW]), and grammaticality (percent grammatical utterances [PGU]). Students also completed a norm-referenced sentence repetition task (Peña et al., 2014) and expressive vocabulary assessment (Martin, 2013).

RESULTS

Comparison of story retells and unique stories revealed similar performance on MLU, NDW, and PGU across elicitation techniques, with one exception: NDW in Spanish was higher in the story retell condition. Predictive models revealed several differences in the relations between the microstructure measures and norm-referenced language measures by elicitation technique, although neither context demonstrated a consistent advantage across all metrics.

CONCLUSIONS

Measures derived from story retells and unique tells offer practical findings for speech-language pathologists and other educators to use in assessment of early grade DLLs. This work increases knowledge of procedural differences across narrative assessments and their influence on language variables, supporting school-based speech-language pathologists in making assessment decisions for DLLs on their caseload.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.19191278.

Predictors of language proficiency in school-age Spanish-English bilingual children with and without developmental language disorder

Children with developmental language disorder (DLD) have impairments in their language-learning abilities that may influence interactions with environmental opportunities to learn two languages. This study explores relationships between proficiency in L1 and L2 and a set of environmental and personal variables within a group of school-age Spanish-English bilingual children with DLD and a group of typically-developing peers. Within each group, current usage in the home, length of L2 exposure, gender, maternal education, analytical reasoning, and number of L1 conversational partners were used to predict proficiency in each language. Results showed that home language environment, particularly home L2 usage, strongly predicted L1 proficiency but had less influence on the L2. Female gender predicted L1 skills in both groups, whereas analytical reasoning predicted both L1 and L2 but only for children with DLD. This study expands the limited literature on how children with DLD interact with their environment to learn two languages.

Morphological Difficulties in People with Developmental Language Disorder

BACKGROUND

One of the linguistic features of people with Developmental Language Disorder (DLD) is found in the use of different types of morphology. People with DLD have serious difficulties in the use of grammatical morphology, and some studies suggest that this factor could constitute a clinical marker of the disorder. The goal of this research was to discover the distinctive characteristics of the different morphological subareas in people with DLD.

METHODS

The sample consisted of 90 children and adolescents between 6 and 15 years old, of which 47 were diagnosed with DLD and the remaining 43 were in the Typical Development (TD) group. The two groups were matched in chronological age. The assessment instrument used was the morphology scale of the BLOC-C test, which includes 19 different subareas of morphology, among which are inflectional and verbal morphology.

RESULTS

The results have shown that people with DLD perform at a lower level than the TD group in all morphology subareas, as well as in the mean and percentile obtained.

CONCLUSIONS

These data have led us to explore explanations based on several hypotheses and to confirm the research outlining the explicit morphological difficulties in people with DLD.

Assessing Language Skills in Bilingual Children: Current Trends in Research and Practice

A continuously challenging issue in the field of speech–language pathology is accurately identifying and diagnosing a language disorder in school-aged (pre-kindergarten through 5th grade) bilingual children, as bilingual children are disproportionately under- and overidentified with a language disorder. The current review focuses on the assessment of bilingual children in pre-kindergarten through fifth grade, aimed to inform teachers, pediatricians, parents, and other relevant professionals of issues surrounding assessment of these dual-language learners. We examine the barriers to assessing bilingual children for language disorders, such as the lack of availability of bilingual tests, underinformative current best practice guidelines, lack of speech–language pathologist (SLP) training/knowledge of bilingualism, and use of interpreters. We discuss the necessary considerations when SLPs use norm-referenced tests with bilingual children, such as norming samples, accurate identification of a language disorder, reliability and validity, test administration, and potential solutions to using otherwise poorly suited norm-referenced tests. We also consider research on several alternative measures to norm-referenced assessments, including dynamic assessment, nonword repetition, language sampling, nonlinguistic cognition, and parent report. We conclude by synthesizing the information in this review to offer six principles of best practices for bilingual assessment.

A systematic review of the academic achievement of primary and secondary school-aged students with developmental language disorder

Background and aims

The ability to communicate is a fundamental skill required to participate in school. Students with Developmental Language Disorder (DLD) have persistent and significant language difficulties that impact daily functioning. However, the impact of DLD on the academic achievement of primary and secondary school-aged students has received limited attention.

Methods

A systematic review of the empirical research published between 2008 and 2020 was undertaken to identify studies that have examined the academic achievement of school-aged students with DLD within curriculum areas. A total of 44 studies were identified that met inclusion criteria for review.

Results

Students with DLD demonstrated difficulties with academic achievement across all measured curriculum areas compared to their typically developing peers. Most studies focused on literacy skills, including reading, spelling, writing and narratives.

Conclusions and implications

The performance of students with DLD was heterogeneous with individual students demonstrating relative strengths in some areas of academic achievement. The implications of these results for educational practices and future research are discussed.

English Narrative Macrostructure Development of Spanish-English Bilingual Children From Preschool to First Grade

Purpose This longitudinal study examined the development of seven macrostructure features in the English narratives of Spanish-English bilingual children from the beginning of preschool to the end of first grade and examined whether the timing of English exposure impacted this development. Method Narratives were collected over 4 years for 103 children of Puerto Rican descent. Narratives were elicited in the fall and spring of each year and coded for macrostructure using the Narrative Scoring Scheme, which generates a score for each macrostructure feature. Using parent report of the timing of English exposure, the children were grouped according to whether they had learned Spanish and English from birth (home English communication) or whether they had been primarily exposed to English in Head Start (school English communication [SEC]). Results Growth curve models revealed that the children's production of all seven narrative features demonstrated growth over the 4 years. Some features demonstrated slowed growth during the school years. Though the children in the SEC group began Head Start with significantly lower macrostructure scores than the children in the home English communication group, the SEC children demonstrated faster growth rates for a majority of features once schooling began. Conclusions The results provide information about the unique developmental progression of each macrostructure feature in the English narratives of bilingual children. The findings suggest that individual macrostructure features were susceptible to the effects of the timing of English exposure. The preschool years mark an important time to promote bilingual children's narrative production, especially for children exposed primarily to Spanish at home.

Morphosyntactic Development in First Generation Arabic—English Children: The Effect of Cognitive, Age, and Input Factors over Time and across Languages

This longitudinal study examined morphosyntactic development in the heritage Arabic-L1 and English-L2 of first-generation Syrian refugee children (mean age = 9.5; range = 6–13) within their first three years in Canada. Morphosyntactic abilities were measured using sentence repetition tasks (SRTs) in English and Syrian Arabic that included diverse morphosyntactic structures. Direct measures of verbal and non-verbal cognitive skills were obtained, and a parent questionnaire provided the age at L2 acquisition onset (AOA) and input variables. We found the following: Dominance in the L1 was evident at both time periods, regardless of AOA, and growth in bilingual abilities was found over time. Cognitive skills accounted for substantial variance in SRT scores in both languages and at both times. An older AOA was associated with superior SRT scores at Time−1 for both languages, but at Time-2, older AOA only contributed to superior SRT scores in Arabic. Using the L2 with siblings gave a boost to English at Time−1 but had a negative effect on Arabic at Time-2. We conclude that first-generation children show strong heritage-L1 maintenance early on, and individual differences in cognitive skills have stable effects on morphosyntax in both languages over time, but age and input factors have differential effects on each language and over time.

L2 vocabulary acquisition of early sequentially bilingual children with TD and DLD affected differently by exposure and age of onset

BACKGROUND

Language exposure is known to be a key factor influencing bilingual vocabulary development in typically developing (TD) children. There is, however, a lack of knowledge in terms of exposure effects in children with developmental language disorder (DLD) and, especially, in interaction with age of onset (AoO) of second language acquisition.

AIMS

In the Helsinki longitudinal SLI study (HelSLI), we investigated the receptive and expressive second language (L2) vocabulary performance and cross-sectional vocabulary development of sequentially bilingual children with TD and DLD in order to resolve whether the groups could be differentiated based on their vocabulary performance. More importantly, we examined the effects of AoO and exposure in the vocabulary performance of these two bilingual groups.

METHODS & PROCEDURES

A total of 70 children with DLD from a hospital clinic and 82 with TD from kindergartens were recruited. Children were 3-7 years old with different AoOs for the L2 and varying degrees of language exposure. Multiple regression analysis was used to compare the groups in two receptive and three expressive vocabulary tests while considering the effects of AoO and language exposure.

OUTCOMES & RESULTS

Children with TD outperformed children with DLD in both receptive and expressive vocabulary measures. Exposure predicted vocabulary but AoO did not. The effect of exposure was different in TD and DLD groups in receptive but not in expressive vocabulary. Additionally, the interaction of exposure and AoO was found for receptive vocabulary, but similarly in both groups. With increasing exposure, a difference in performance between the groups became more notable in receptive vocabulary compared with the expressive vocabulary.

CONCLUSIONS & IMPLICATIONS

Bilingual children with TD and DLD can be differentiated by using L2 vocabulary tests when exposure is taken into consideration. Non-significant AoO effects in 3-7 year olds suggest flexibility in terms of when to start L2 immersion. However, exposure is important, and especially children with DLD would need a substantial amount of it relative to their TD peers, so that they would not fall even further behind over time. Differences in benefiting from exposure in receptive mode might offer clinicians and kindergarten personnel an insight for evaluating challenges in bilingual development. Severe challenges in vocabulary development in the DLD group also call for both individually targeted small-group activities for learning words as well as strategies for strengthening vocabulary in various environments and everyday life situations. What this paper adds What is already known on the subject Language exposure is often found to explain more of the variation compared with AoO in early L2 vocabulary. On the other hand, it has been suggested by some researchers, but not all, that AoO effects would be found. Exposure and AoO might also interact differently depending on the task and whether the development is typical or disordered. Contrary to the clinical observation, diagnostic value of receptive vocabulary has often been questioned. What this paper adds to existing knowledge This study indicates that receptive vocabulary might be useful in differentiating bilingual TD and DLD. Language exposure effects differ between TD and DLD groups, but depending on task. Lower performance, but also slower cross-sectional development, is found in receptive vocabulary for children with DLD. Interaction between language exposure and AoO stresses the importance of taking both into consideration when studying bilingual development. What are the potential or actual clinical implications of this work? L2 vocabulary tests can be used in differentiating bilingual children with TD and DLD when exposure is taken into consideration. Difficulties using exposure and, hence, slower development in children with DLD suggest that especially receptive vocabulary might be diagnostic by the accumulating exposure. Investing in ways of supporting vocabulary development through small-group activities and in everyday situations of bilingual children at risk of DLD is highly recommended. This is important to prevent them from incrementally falling further behind their TD peers over time. A limited AoO effect suggests that families have more flexibility in terms of when to place their child in L2 immersion in their early years.

Can children with DLD acquire a second language in a foreign-language classroom? Effects of age and cross-language relationships

There is a growing pressure to teach foreign languages as early as possible, and children with Developmental Language Disorder (DLD) are not immune from these pressures. However, current scholarship lacks crucial insights into how children with DLD respond to L2 learning with minimal (classroom) exposure. In this paper, we report the results of a longitudinal study tracing the development of L1 Russian and English as a Foreign Language (EFL) skills in a group of learners with DLD (age of EFL onset: 7;9-12;1). The performance of the DLD group was compared to that of typically-developing controls, matched for classroom EFL exposure. Proficiency in English and Russian was measured three times (after one, one-and-a-half and two years of EFL instruction). At Time 1, there were no significant differences between groups on the EFL measures, but the performance of the typically-developing children significantly improved with time, and that of the DLD group did not. In the DLD group, age of EFL onset was positively related to English receptive vocabulary size. The relation between L1 and L2 proficiency in the DLD group was weaker than in the comparison group. This pattern is probably due to the floor performance of the DLD group in the grammatical domain, but may also indicate that the disorder affects cross-language transfer in the vulnerable domains.

Automated Phenotyping Tool for Identifying Developmental Language Disorder Cases in Health Systems Data (APT-DLD): A New Research Algorithm for Deployment in Large-Scale Electronic Health Record Systems

Purpose Data mining algorithms using electronic health records (EHRs) are useful in large-scale population-wide studies to classify etiology and comorbidities (Casey et al., 2016). Here, we apply this approach to developmental language disorder (DLD), a prevalent communication disorder whose risk factors and epidemiology remain largely undiscovered. Method We first created a reliable system for manually identifying DLD in EHRs based on speech-language pathologist (SLP) diagnostic expertise. We then developed and validated an automated algorithmic procedure, called, Automated Phenotyping Tool for identifying DLD cases in health systems data (APT-DLD), that classifies a DLD status for patients within EHRs on the basis of ICD (International Statistical Classification of Diseases and Related Health Problems) codes. APT-DLD was validated in a discovery sample (N = 973) using expert SLP manual phenotype coding as a gold-standard comparison and then applied and further validated in a replication sample of N = 13,652 EHRs. Results In the discovery sample, the APT-DLD algorithm correctly classified 98% (concordance) of DLD cases in concordance with manually coded records in the training set, indicating that APT-DLD successfully mimics a comprehensive chart review. The output of APT-DLD was also validated in relation to independently conducted SLP clinician coding in a subset of records, with a positive predictive value of 95% of cases correctly classified as DLD. We also applied APT-DLD to the replication sample, where it achieved a positive predictive value of 90% in relation to SLP clinician classification of DLD. Conclusions APT-DLD is a reliable, valid, and scalable tool for identifying DLD cohorts in EHRs. This new method has promising public health implications for future large-scale epidemiological investigations of DLD and may inform EHR data mining algorithms for other communication disorders. Supplemental Material https://doi.org/10.23641/asha.12753578.

Home language environment and children's second language acquisition: the special status of input from older siblings

Previous research suggests that increased second language (L2) input at home may not support L2 acquisition in children from migrant backgrounds. In drawing this conclusion, existing work has largely aggregated across family members. This study contrasts the effect of L2 input from older siblings with that from mothers. Participants were 113 child L2 learners of English (mean age = 5;10 [range 4;10-7;2]; mean exposure to L2 in school = 16.7 months [range 2-48 months]). All children had at least one older sibling. Using hierarchical linear regression modelling with controls for age, non-verbal reasoning and phonological short-term memory, we found that greater L2 input from siblings - but not mothers - was associated with stronger L2 abilities in narrative macrostructure, inflectional morphology, and vocabulary. Increased cumulative exposure to the L2 at school and greater maternal L2 fluency were also positively related to children's L2 inflectional morphology and vocabulary scores.

Development of the Narrative Assessment Protocol-2: A Tool for Examining Young Children's Narrative Skill

Purpose

Narrative skill, a child's ability to create a temporally sequenced account of an experience or event, is considered an important domain of children's language development. Narrative skill is strongly predictive of later language and literacy and is emphasized in curricula and educational standards. However, the need to transcribe a child's narrative and the lack of psychometrically justified scoring methods have precluded broad consideration of narrative skill among practitioners. We describe the development and validation of the Narrative Assessment Protocol-2 (NAP-2), an assessment of narrative skill for children ages 3–6 years, which uses event-based frequency scoring directly from a video recording of a child's narrative.

Method

The NAP-2 underwent a rigorous development process involving creation of four wordless picture books and associated scripts and identification of a broad item pool, including aspects of narrative microstructure and macrostructure. We collected two narratives from each of 470 children using the NAP-2 elicitation materials and scored each with the 60 items in the initial item pool.

Results

Cross-validated exploratory factor analyses indicated a single narrative skill factor. Rasch measurement analysis led to selection of 20 items that maintained high reliability while having good fit to the model and no evidence of differential item functioning across books and gender.

Conclusions

The NAP-2 offers a psychometrically sound and easy-to-use assessment of narrative skill for children ages 3–6 years. The NAP-2 is available freely online for use by speech-language pathologists, educational practitioners, and researchers.

Supplemental Material

https://doi.org/10.23641/asha.11800779

The use of evaluative expressions in the narratives of adolescents with a history of SLI

Typically, young children diagnosed with specific language impairment (SLI; also called Developmental language disorder, DLD) have been found to show weakness in narrative development, and such weakness has been judged to be unlikely to resolve over time. However, developmental outcomes for adolescents with a prior SLI diagnosis have not been thoroughly studied. In particular, studies on the evaluative aspects of narratives of such persons are almost non-existent. Here we examine the question whether narrative evaluation of adolescents formerly diagnosed with SLI remains problematic into adolescence or comes to resemble more typical narrative performance. We compare the use of evaluative expressions in the narratives of 19 adolescents diagnosed with SLI against 19 typically language developing (TLD) peers. Spoken narratives by the SLI group (Mean age = 14.3; SD = 0.64) and TLD group (Mean age = 14.5; SD = 0.84) using the wordless picture storybook "Frog, where are you?" ( https://childes.talkbank.org/access/Clinical-MOR/Conti/Conti4.html ) were analysed. Each narrative was coded for evaluative clauses, types of evaluative devices (frames of mind, character speech, hedges, negatives, and causal connectives), as well as evaluative perspectives (global vs. local). Although the quantitative analysis did not reveal any significant differences between the two groups, the qualitative analysis showed certain notable strengths in the narrative skills of the focal group of SLI adolescents. Results suggest that adolescents with a history of SLI may approximate TLD narrative skill in evaluating their own narratives, but additional work with more sensitive measures applied at intervals are needed to illuminate developmental pathways of narrative production and of evaluative capacities in adolescents formerly diagnosed with SLI.