Child-level factors associated with Spanish-English bilingual toddlers' productive vocabulary growth.

This longitudinal study-conducted in the Midwestern United States-examines the child-level factors that promote Spanish-English bilingual toddlers' (n = 47; Mage = 18.80 months; SDage = 0.57) productive vocabulary skills from 18 to 30 months of age. At 6-month intervals, caregivers reported on toddlers' Spanish and English words produced as well as their language exposure at home. Video recordings at child age 18 months yielded estimates of toddlers' speech output (word tokens per minute). In addition, at child age 18 months, caregivers reported on toddlers' linguistic skills (comprehension), demographic background (gender, household income), and nonverbal behaviors (gesture production). Results showed that toddlers were exposed to both English and Spanish and received more Spanish than English from primary caregivers; there were no significant primary caregiver input differences across time. Growth modeling revealed linear growth rates for Spanish and conceptual (Spanish, English combined) vocabulary and a curvilinear trajectory for English vocabulary. Furthermore, toddlers' Spanish and conceptual vocabularies were positively associated with their higher frequencies of token use, greater production of gesture, and greater comprehension skills, even after controlling for input. Moreover, Spanish and conceptual growth rates were positively associated with higher token use. In terms of English, toddlers' vocabulary at child age 18 months was positively associated with their comprehension skills. Toddlers' use of more gestures and tokens as well as gender (boys) influenced their English acceleration rates over time. Findings indicate that unique trajectories exist for each of a bilingual's languages and these trajectories are differentially influenced by child-level factors, including their speech output, not only exposure to language. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Latino toddlers' bilingual output and their caregivers' bilingual input and acculturation.

The current study's aim was to investigate how Latino toddlers' bilingual language development relates to their caregivers' bilingual language use (i.e., input) and cultural orientation (to the US and their heritage country). Video recordings of caregiver-child interactions, collected when toddlers were approximately 1.5 (Mage = 18.73 months; SDage = 1.11) and 2 years old (Mage = 25.13 months; SDage = 1.29), were used to measure caregivers' (Mage = 33.29 years; SDage = 4.95) and toddlers' language use (i.e., output), respectively. Specifically, the total number of words used (i.e., tokens) in Spanish and English were derived from the video-recordings. In addition, caregivers' cultural orientation (i.e., acculturation; Mexican/heritage culture-oriented to US-oriented) was assessed using a multidimensional measure of acculturation. Descriptive analyses of tokens showed that caregivers and toddlers used both Spanish and English during interactions with each other, though caregivers used a higher ratio of Spanish-to-English (i.e., more Spanish than English) than did toddlers. Mediational analyses further revealed that caregivers' acculturation level was indirectly related to toddlers' bilingual language use, specifically as a function of caregivers' bilingual language use. These findings suggest that caregivers' bilingual input acts as a mediator between caregivers' acculturation and their toddlers' bilingual output.

Spanish-English bilingual toddlers' vocabulary skills: The role of caregiver language input and warmth.

There is a well-documented link between bilingual language development and the relative amounts of exposure to each language. Less is known about the role of quality indicators of caregiver-child interactions in bilingual homes, including caregiver input diversity, warmth and sensitivity. This longitudinal study examines the relation between caregiver input (lexical diversity, amount), warmth and sensitivity and bilingual toddlers' subsequent vocabulary outcomes. We video-recorded caregiver-child interactions in Spanish-English Latino homes when toddlers (n = 47) were 18 months of age (M = 18.32 months; SD = 1.02 months). At the 24-month follow-up, we measured children's vocabulary as total vocabulary (English, Spanish combined) as well as within language (Spanish, English). Results revealed that Spanish lexical diversity exposure at 18 months from caregivers was positively associated with children's Spanish and total vocabulary scores at 24 months, while English lexical diversity was positively associated with children's English scores; lexical diversity and amount were highly correlated. Additionally, caregivers' warmth was positively associated with children's Spanish, English and total vocabulary scores. Together, these factors accounted for substantial variance (30-40%) in vocabulary outcomes. Notably, caregiver input accounted for more variance in single language outcomes than did caregiver warmth, whereas caregiver warmth uniquely accounted for more variance in total vocabulary scores. Our findings extend prior research findings by suggesting that children's dual language development may depend on their exposure to a diverse set of words, not only amount of language exposure, as well as warm interactions with caregivers. A video abstract of this article can be viewed at https://youtu.be/q1V_7fz5wog HIGHLIGHTS: Video-recorded observations of caregiver-child interactions revealed warmth and high sensitivity from Latino caregivers. Linguistically-detailed analyses of caregiver input revealed wide variation in the diversity of Spanish and English directed at 18-month-old bilingual toddlers. Bilingual toddlers' vocabulary (single language, total) was positively associated with caregivers' diverse input and warmth, thus extending prior findings on bilinguals' amount of language exposure. Findings suggest that caregivers' lexical diversity explains more variance in bilingual toddlers' single language outcomes, whereas warmth explains more variance in total vocabulary scores.

Early-adolescent dual language learners' reading comprehension: Influences of teacher questions and language efficacy.

This study examined the relation between middle school Dual Language Learners' (DLLs'; N = 413; M age = 11.66 years old; 87.1% Latino; female = 234, male = 179) reading comprehension skills and their teachers' (N = 32; M age = 36.53 years; 81.3% Caucasian; female = 27, male = 5) questioning practices across the school year. This study also examined relations between DLLs' engagement in high-quality discussion practices, language efficacy (i.e., beliefs about their capabilities to use language), and reading comprehension. Results demonstrated that teachers' use of authentic (open-ended) questions was positively related to their DLL students' reading comprehension; teachers' questioning practices were consistent across the year. Results also revealed a positive interaction between DLLs' high-quality discussion practices and their language efficacy in predicting reading comprehension. That is, when DLLs had higher language efficacy, there was a more positive effect of their high-quality discussion practices on their Spring reading comprehension scores. These findings suggest that teachers' questioning practices are important in creating classroom environments that promote DLLs' reading comprehension. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Assessment of Personal Narrative Writing in Children with and without Autism Spectrum Disorder.

BACKGROUND: Research has demonstrated that writing may be challenging for many children with Autism Spectrum Disorder (ASD; Mayes & Calhoun, 2006). In our study, we used linguistic analysis to identify and examine the personal narrative writing skills of children with ASD in comparison to neurotypical (NT) children. METHOD: This study included 22 children with ASD and 22 NT children. Groups did not differ in terms of age, IQ, and language. Writing samples were coded and compared for aspects of microstructure (e.g., lexical and syntactic complexity, errors) and macrostructure (e.g., quality, or ratings of coherence, structure, and content). We also examined the link between theory of mind (ToM) and personal narrative writing. Of interest was whether ToM uniquely predicted writing performance after controlling for diagnostic group, chronological age, and language ability. RESULTS: The texts of children with ASD were less syntactically diverse, contained more grammatical errors, and were reduced in overall quality compared to NT children. However, children with ASD did not differ from NT children in terms of lexical complexity, frequency of writing conventions errors, and use of evaluative devices. Overall, ToM uniquely predicted syntactic complexity and text quality in children. CONCLUSIONS: Study findings showed that children with ASD demonstrate some challenges with personal narrative writing compared to NT children. Additionally, difficulty with narrative writing was linked to poorer ToM performance, particularly in children with ASD. Findings highlight the utility of obtaining a variety of writing outcomes, as well as mechanisms related to writing, when evaluating writing for educational decisions.

Dual Language and English-Only Learners' Expressive and Receptive Language Skills and Exposure to Peers' Language.

This study examined dual language learners' (DLLs n = 24) and English-only (EO n = 20) children's expressive and receptive language in kindergarten (Mage  = 5.7 years) as well as the relation to peers' language use. Expressive language skills (vocabulary diversity, syntactic complexity) were measured in the fall, winter, and spring (2014-2015 year). Receptive language skills (vocabulary, sentence comprehension) were measured in the fall and spring. Findings revealed increases in children's expressive and receptive language, except in terms of syntactic complexity. Moreover, peers' vocabulary diversity was positively associated with children's vocabulary diversity. Peers' syntactic complexity was positively associated with children's syntactic complexity and receptive vocabulary. Findings suggest that peers' language use may influence DLLs' and EO children's language learning.

Parent Reports of Young Spanish-English Bilingual Children's Productive Vocabulary: A Development and Validation Study.

PURPOSE: This 2-phase study aims to extend research on parent report measures of children's productive vocabulary by investigating the development (n = 38) of the Spanish Vocabulary Extension and validity (n = 194) of the 100-item Spanish and English MacArthur-Bates Communicative Development Inventories Toddler Short Forms and Upward Extension (Fenson et al., 2000, 2007; Jackson-Maldonado, Marchman, & Fernald, 2013) and the Spanish Vocabulary Extension for use with parents from low-income homes and their 24- to 48-month-old Spanish-English bilingual children. METHOD: Study participants were drawn from Early Head Start and Head Start collaborative programs in the Northeastern United States in which English was the primary language used in the classroom. All families reported Spanish or Spanish-English as their home language(s). The MacArthur Communicative Development Inventories as well as the researcher-designed Spanish Vocabulary Extension were used as measures of children's English and Spanish productive vocabularies. RESULTS: Findings revealed the forms' concurrent and discriminant validity, on the basis of standardized measures of vocabulary, as measures of productive vocabulary for this growing bilingual population. CONCLUSION: These findings suggest that parent reports, including our researcher-designed form, represent a valid, cost-effective mechanism for vocabulary monitoring purposes in early childhood education settings.

Structural priming in Spanish as evidence of implicit learning.

This study uses a structural priming technique with young Spanish speakers to test whether exposure to a rare syntactic form in Spanish (fue-passive) would increase the production and comprehension of that form. In Study 1, 14 six-year-old Spanish speakers described pictures of transitive scenes. This baseline study revealed that fue-passives were virtually non-existent in children's spontaneous speech. Using the priming technique in Study 2, an additional 56 Spanish-speaking children were exposed to fue-passive or active picture descriptions; we varied whether children repeated the modeled form. With repetition, production of fue-passives increased past baseline usage. When not asked to repeat, comprehension and production of fue-passives was no different than chance. Results extend the existing literature by experimentally testing input effects on the production and comprehension of infrequently used constructions, further corroborating the relation between input frequency and language skill. Findings are consistent with the view that an implicit learning mechanism guides language learning.

Exploring interactions between semantic and syntactic processes: The role of animacy in syntactic priming.

The current study addressed the relation between syntactic and semantic processes during language production in 5- and 6-year-old children. A priming paradigm was used to examine children's production of passives in describing transitive scenes (target pictures) following exposure to the experimenter's sentences (primes). The key question was whether the tendency to repeat the syntactic form of the prime was affected by the animacy features in the prime and the target picture. In Experiment 1, children heard either passive or active primes with varied animacy configurations (e.g., animate patient/inanimate agent vs. inanimate patient/animate agent). The animacy features of the prime matched those of the target. Similar to prior studies, results showed a greater use of passives following passive, as opposed to active, primes. Critically, the difference between the two priming conditions varied as a function of animacy; it was larger when the prime and the target included an animate patient/inanimate agent than with the reversed animacy. In Experiment 2, the animacy configuration of the prime either matched or did not match that of the target. Results showed a greater likelihood of producing a passive when the target picture contained an animate patient versus an inanimate patient, and this effect was stronger when the prime had the same animacy features. The findings indicating that syntactic priming is moderated by animacy are discussed in the broader context of understanding the role of semantics in guiding the choice of syntactic structure.

Early-adolescents' reading comprehension and the stability of the middle school classroom-language environment.

This study examined teachers' language use across the school year in 6th grade urban middle-school classrooms (n = 24) and investigated the influence of this classroom-based linguistic input on the reading comprehension skills of the students (n = 851; 599 language minority learners and 252 English-only) in the participating classrooms. Analysis of speech transcripts revealed substantial variability in teachers' use of sophisticated vocabulary and total amount of talk and that individual teacher's language use was consistent across the school year. Analyses using Hierarchical Linear Modeling showed that when controlling for students' reading comprehension and vocabulary knowledge at the start of the year, teachers' use of sophisticated vocabulary was significantly related to students' reading comprehension outcomes, as was the time spent on vocabulary instruction. These findings suggest that the middle school classroom language environment plays a significant role in the reading comprehension of adolescent learners.

The relation between exposure to sophisticated and complex language and early-adolescent English-only and language minority learners' vocabulary.

This study investigated the relation between teachers' (N = 22) use of sophisticated and complex language in urban middle-school classrooms and their students' (mean age at pretest = 11.51 years; N = 782; 568 language minority and 247 English only) vocabulary knowledge. Using videotaped classroom observations, teachers' speech was transcribed and coded for their total amount of talk, vocabulary usage, and syntactic complexity. Students' vocabulary skills were assessed at the beginning and end of the school year. Results showed variation in students' vocabulary skills and teachers' language use. Hierarchical linear modeling techniques revealed that after controlling for classroom and school composition and students' beginning-of-the-year scores, students' end-of-the-year vocabulary skills were positively related to teachers' use of sophisticated vocabulary and complex syntax, but not teachers' total amount of talk.

Cross-linguistic syntactic priming in bilingual children.

Previous research has used cross-linguistic priming methodology with bilingual adults to explore the nature of their syntactic representations. The present paper extends the use of this methodology to bilingual children to investigate the relation between the syntactic structures of their two languages. Specifically, we examined whether the use of passives by the experimenter in one language primed the subsequent use of passives by the child in the other language. Results showed evidence of syntactic priming from Spanish to English: hearing a Spanish sentence containing a passive led to the increase in children's production of the parallel structure in English. However, there was no priming in the other direction: hearing an English sentence containing a passive did not increase children's use of the parallel structure in Spanish. These results provide evidence for both the integration of syntactic representations in bilingual children and the asymmetry of the relation between their two languages.

Priming a perspective in Spanish monolingual children: the use of syntactic alternatives.

We used a syntactic priming paradigm to show priming effects for active and passive forms in monolingual Spanish-speaking four- and five-year-olds. In a baseline experiment, we examined children's use of the fue-passive form and found it was virtually non-existent in their speech, although they produced important elements of the form. Children used a more frequent Spanish passive form, the subjectless/se-passive. In a priming experiment, we presented children with drawings described using either active or fue-passive sentences. Children then described novel drawings. Priming was induced for active and passive forms; however, children did not produce the fue-passive provided for them. Instead, children used the subjectless/se-passive and what we term the function-passive, which like the fue-passive, emphasize the patient of the action. We argue that children's use of different passive forms suggests they are sensitive to experimenter's input as it relates to scene interpretation and to syntax.

Syntactic priming in 3- and 4-year-old children: evidence for abstract representations of transitive and dative forms.

The current studies used a syntactic priming paradigm with 3- and 4-year-old children. In Experiment 1, children were asked to describe a series of drawings depicting transitive and dative relations to establish baseline production levels. In Experiment 2, an experimenter described a similar series of drawings using one of two syntactic forms (i.e., active/passive for transitive; double-object/prepositional for dative). Children were then asked to describe pictures identical to those shown in the corresponding baseline procedure. In both transitive and dative conditions, 4-year-old children were more likely to use a particular syntactic form if it had been used by the experimenter. Three-year-old children did not show priming effects, but their production of transitive sentences was higher following transitive primes than in Experiment 1. In Experiment 3, an additional group of 3-year-olds participated in a procedure in which they repeated the experimenter's sentences before describing the pictures. This procedure yielded significant priming effects for transitive and dative forms. These results indicate that very young children possess abstract syntactic representations, but that their access to these representations is sensitive to task demands.