This meta-analysis examined associations between the quantity and quality of parental linguistic input and children's language. Pooled effect size for quality (i.e., vocabulary diversity and syntactic complexity; k = 35; N = 1,958; r = .33) was more robust than for quantity (i.e., number of words/tokens/utterances; k = 33; N = 1,411; r = .20) of…

Purpose: Sentence diversity is a measure of early language development that has yet to be applied to individuals with autism spectrum disorder (ASD). The primary aim of this study was to identify whether children with ASD show change in sentence diversity over 6 months of treatment with Naturalistic Developmental Behavioral Intervention (NDBI).…

Methods can powerfully affect conclusions about infant experiences and learning. Data from naturalistic observations may paint a very different picture of learning and development from those based on structured tasks, as illustrated in studies of infant walking, object permanence, intention understanding, and so forth. Using language as a model…

Non-Chinese-speaking (NCS) South Asian students, as ethnic minority group in Hong Kong, are the main disadvantaged social cohort in Chinese language learning. It has been a challenge for L1 Chinese teachers to conduct L2 Chinese teaching to NCS students with diversified native languages and socio-cultural backgrounds. "Reading to Learn,…

Across a diverse range of languages, children proceed through similar stages in their production of causal language: their initial verbs lack internal causal structure, followed by a period during which they produce causative overgeneralizations, indicating knowledge of a productive causative rule. We asked in this study whether a child not…

The present dissertation extracted 17,291 questions from Aki, Ryo, and Tai and their mother's spontaneously produced speech data available in the CHILDES database (MacWhinney, 2000; Oshima-Takane & MacWhinney, 1998). The children's age ranged from 1;3 to 3;0. Their questions were coded for (1) yes/no questions that include a sentence-final…

An important aspect of Family Language Policy in bilingual families is parental language choice. Little is known about the continuity in parental language choice and the factors affecting it. This longitudinal study explores maternal language choice over time. Thirty-one bilingual mothers provided reports of what language(s) they spoke with their…

Much attention is now given to academic language, particularly in content areas such as science, amid persistent achievement disparities between students classified as English Language Learners, and more recently, Long Term English Learners, and their English-proficient peers. This attention has fueled debate about the precise features of such…

This article analyzes how emergent bilinguals discursively support one another during literacy activities in a cross-aged peer-tutoring program in their elementary school. Drawing from Vygotskian sociocultural theory, we frame peer supports as developing a zone of relevance that fosters and sustains peer engagement in literacy discussions.…

Via naturalistic observations, parent interview, and direct assessments, we examined language proficiency, language use, and differentiation of a 3-year, 4-month-old bilingual child exposed to Mandarin and English via the "one parent-one language" principle. Although noun versus verb dominance has been explored across verb-based…

The early relationship between children's emerging articulatory abilities and their capacity to process speech input was investigated, following recent studies with English-learning infants. Twenty-six monolingual Italian-learning infants were tested at 6 months (no consistent and stable use of consonants, or vocal motor schemes [VMS]) and at the…

This research study is based on the analysis of speech in three Spanish conversation classes. Research questions are: What is the ratio of English and Spanish spoken in class? Is classroom speech more predominant in students or the instructor? And, are teachers' beliefs in regards to the use of English and Spanish consistent with their classroom…

The relationship between language pedagogy and the content and language integrated learning (CLIL) classroom is a key issue for research into CLIL. In the Netherlands, as in other European contexts, non-native speakers of a target language with a non-language teaching background teach CLIL content lessons. Whilst CLIL teachers teaching their…

Theories of language acquisition have highlighted the importance of adult speakers as active participants in children's language learning. However, in many communities children are reported to be directly engaged by their caregivers only rarely (Lieven, 1994). This observation raises the possibility that these children learn language from…

The present study examined the growth of receptive lexical skills in preschoolers over an academic year in relation to teacher speech. The participating students were English language learners and their monolingual English-speaking peers from the same classrooms. The measures of teacher input included indicators of the amount of speech (total…