The Complexity of the Spanish Subjunctive in Bilingual Children with SLI

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.

Spanish Bilingual Morphosyntactic Development in Bilingual Children With and Without Developmental Language Disorder: Articles, Clitics, Verbs, and the Subjunctive Mood

PURPOSE

The purpose of this study was to examine the growth of previously established clinical markers of developmental language disorder (DLD) in Spanish-speaking bilingual children with and without DLD.

METHOD

Forty-three bilingual children with DLD and 57 typically developing children were tested 3 times over a 2-year period. Their average age at Time 1 was 5;10 (years;months). All children completed an elicitation task examining the production of articles, clitics, verbs, and the subjunctive mood in Spanish at each time point, in addition to other behavioral testing in Spanish and English. We used growth curve analysis to examine change patterns of the morphosyntactic structures over time.

RESULTS

At the onset of the study, children without DLD produced higher accuracy rates than children with DLD across all morphosyntactic structures. In addition, there was a positive effect of time on all structures. Furthermore, the interaction between time and DLD was statistically significant for clitic pronouns.

CONCLUSION

In agreement with previous literature on language growth in monolingual children with DLD, bilingual children with DLD showed language growth that was parallel to that of bilingual children without DLD but with significantly lower levels of attainment.

SUPPLEMENTAL MATERIAL AND PRESENTATION VIDEO

https://doi.org/10.23641/asha.23810820.

Recast Therapy for Treating Syntax in Bilingual Children With Developmental Language Disorder: A Feasibility and Early Efficacy Study Examining the Role of Language of Intervention on Outcomes

PURPOSE

The purpose of this study is to examine the feasibility of the delivery of complex syntax recast therapy via telepractice to Spanish-English bilingual children and provide preliminary evidence of the efficacy of this approach.

METHOD

Fifteen bilingual children with developmental language disorders were stratified based on language proficiency and randomized to one of three treatment conditions: Spanish only (n = 5), English only (n = 6), or Spanish + English (n = 4). Using a within-subject design, we hypothesized that we could document treatment efficacy based on change in the treated structure in the absence of change in an untreated comparison structure. All 15 children completed ~16 hr of treatment via telepractice and participated in pre- and posttesting of their production of conditional adverbs (treated structure) and subject relative clauses (untreated structure) carried out by a masked assessor.

RESULTS

Analyses included all participants. Treatment fidelity was high, and participant attendance was remarkable, indicating feasibility. Regarding efficacy, recast therapy led to group-level gains on treated syntactic structures that exceeded those observed for the untreated comparison structure. For the 11 children who received therapy in only one language, approximately equal gains were observed in both the treated and untreated languages for conditional adverbials.

CONCLUSIONS

Preliminary evidence suggests that for highly overlapping structures like conditional adverbials, recast therapy is effective and leads to change in both of the child's languages. Larger studies are required to understand how language of administration and proficiency may affect outcomes.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.23739996.

Overt Subject Pronoun Use in Switch-Reference Contexts in Child Spanish Developmental Language Disorder: A Discriminant Function Analysis

PURPOSE

Our study analyzes probabilistic constraints on subject expression previously found in adult Spanish in the speech of typically developing (TD) Spanish-speaking children and children with developmental language disorder (DLD). Previous work shows that children with DLD produce fewer overt subjects than typically developing children, and that the latter acquire constraints on subject expression as they age into adolescence. Our study complements these findings and provides further substance to the grammatical profile of children whose morphosyntactic development diverges from that of typically developing children.

METHOD

Data are drawn from unstructured spontaneous production data from a sample of 19 monolingual Mexican, Spanish-speaking children, collected in 2006-2007. This sample includes 19 children diagnosed with DLD and 19 age-matched, typically developing children. We collected all instances of finite verbs that either did or could have occurred with a subject personal pronoun uttered by the child participants and coded them for several factors including tense-mood-aspect, switch reference, and person and number.

RESULTS

We find that children with DLD produce fewer overt subject pronouns in switch reference contexts than typically developing controls, with a significant interaction of group and switch reference. Furthermore, a discriminant function analysis shows that overt pronoun use in switch reference contexts can form part of a useful diagnostic discriminant function, with high levels of sensitivity and specificity.

CONCLUSIONS

Overall, we find important differences between TD Spanish-speaking children and those diagnosed with DLD regarding rates of overt subjects and sensitivity to the probabilistic constraint of switch reference. This finding contributes to our understanding of the morphosyntactic profiles of children with DLD, as well as the utility of factors such as switch reference in the identification of language disorders.

What Characterizes the Productive Morphosyntax of Norwegian Children with Developmental Language Disorder?

Little is known about the productive morphosyntax of Norwegian children with developmental language disorder (DLD). The current study examined morphosyntax in Norwegian-speaking children with DLD (n =19) and a control group that was pairwise matched for age, gender, and intelligence quotient (IQ; n = 19). The children's sentence repetitions were studied through the lens of Processability Theory. The group differences were largest for grammatical structures at the latest developmental stage of the processability hierarchy. The Norwegian subordinate clause word order, belonging to the latest stage of the processability hierarchy, stood out as particularly challenging for children with DLD. Only 2 children with DLD but 16 children in the control group produced a subordinate clause with subordinate clause word order. Categorization of children's errors revealed that children with DLD made more errors of all types (addition, omission, substitution, inflection and word order) but especially errors of omission and inflection.

Morphological Errors in Spanish-Speaking Bilingual Children With and Without Developmental Language Disorders

Purpose The purpose of this study was to find morphological markers with good diagnostic accuracy to identify developmental language disorders (DLD) in Spanish-English bilingual children. Method The participants in this study included 66 Spanish-English bilingual children between the ages of 4;0 and 6;11 (years;months) with (n = 33) and without DLD (n = 33). We employed a comprehensive production task in Spanish to elicit morphological structures that have been previously found to be problematic for Spanish-speaking children with DLD. These structures included elements of nominal morphology (articles, direct object pronouns, adjectives, and plurals) and verbal morphology (verbs and the subjunctive mood). Logistic regression was used in this study to find a set of grammatical structures that most accurately predicted group membership. Results Spanish-English bilingual children with and without DLD significantly differed from each other in their accurate production of articles, clitics, adjectives, verbs, and the subjunctive mood. Clitics, verbs, and the subjunctive mood in isolation had adequate diagnostic accuracy. A combination of verb and subjective mood accuracy best predicted group membership in this study (sensitivity of 85% and specificity of 91%). Conclusion In addition to clitics, verbs, and the subjunctive mood, both elements of verbal morphology should be considered grammatical markers of DLD in Spanish-English bilingual children. Supplemental Material https://doi.org/10.23641/asha.13641320.

Fragments Along the Way: Minimalism as an Account of Some Stages in First Language Acquisition

We discuss two instances in which the minimalist model of syntax offers a potential account of children's linguistic behavior: the Merge analysis of phrase structure and the analysis of pronominal structures and other long distance dependencies. In each case, we need to understand the relationship between performance mechanisms (the mechanisms for language production and comprehension) and the syntax on which these mechanisms draw.

Production of Spanish Grammatical Forms in U.S. Bilingual Children

PURPOSE

The purpose of this analysis was to understand how grammatical morpheme production in Spanish for typically developing Spanish-English bilingual children relates to mean length of utterance in words (MLUw) and the extent to which different bilingual profiles influence order of grammatical morpheme acquisition.

METHOD

Participants included 228 Spanish-English bilingual children ages 4;0-7;6 (years;months). Grammatical morpheme accuracy was evaluated using an experimental version of the Bilingual English-Spanish Assessment (Peña, Gutiérrez-Clellen, Iglesias, Goldstein, & Bedore, 2014). MLUw data were calculated from children's narrative samples. Production accuracy of plural nouns, singular and plural definite articles, preterite tense, imperfect aspect, direct object clitics, prepositions, subjunctive, and conjunctions was calculated and analyzed as a function of MLUw in Spanish. Level of accuracy on these forms was compared for Spanish-dominant and English-dominant groups.

RESULTS

Accuracy was significantly associated with MLUw. The relative difficulty of Spanish grammatical morphemes is highly similar across different bilingual profiles.

CONCLUSIONS

There are common elements of Spanish that are easy (imperfect, plural nouns, singular articles, conjunctions), medium (plural articles, preterite), or hard (prepositions, direct object clitics, subjunctive), regardless of whether a child is a Spanish-dominant or English-dominant bilingual.