This study investigated the feasibility of a vocabulary-based teacher intervention to increase preschool teachers' production of complement clauses (e.g. "I wonder if we can put the monkey in the tree") in teacher-children play interactions. Using a multiple baseline across participants design we measured the impact of an intervention…

Research on "parentese," the acoustically exaggerated, slower, and higher-pitched speech directed toward infants, has mostly focused on maternal contributions, although it has long been known that fathers also produce parentese. Given recent societal changes in family dynamics, it is necessary to revise these mother-centered models of…

One of the fundamental questions in the field of language acquisition is a learnability problem, which considers how learners acquire certain aspects of language which are not directly provided in the input or whose referents are not readily observable. This dissertation investigates Japanese children's acquisition of various linguistic phenomena,…

A previous study has shown that children use recent input to adapt their syntactic predictions and use these adapted predictions to infer the meaning of novel words. In the current study, we investigated whether children could use this mechanism to disambiguate words whose interpretation as a noun or a verb is ambiguous. We tested 2- to 4-year-old…

While semantic and syntactic properties of verb meaning can impact the success of verb learning at a single age, developmental changes in how these factors influence acquisition are largely unexplored. We ask whether the impact of syntactic and semantic properties on verb vocabulary development varies with age and language ability for toddlers…

The theory underlying L2 oral fluency has focused on cognitive processes, particularly proceduralization (Anderson, 1983; Levelt, 1989, 1999) and linguistic constructs, especially vocabulary and grammar (Segalowitz, 2010). Towell, Hawkins, and Bazergui (1996) argued that development of formulaic language enables automatic speech production.…

Children show a remarkable degree of consistency in learning some words earlier than others. What patterns of word usage predict variations among words in age of acquisition? We use distributional analysis of a naturalistic corpus of child-directed speech to create quantitative features representing natural variability in word contexts. We…

Although the literature on computer-assisted language learning has demonstrated that digital tools such as online translators and bilingual dictionaries offer affordances to second language (or foreign language) writers of English to solve linguistic (lexical and syntactic) issues, the extent to which digital technology supports multilingual…

In this corpus study, it is asked whether young children speaking European French build their early syntax around grammatical or lexical words. Specifically, the study examines the relationship of grammatical and lexical words in three types of syntactic structures (determiner--noun, pronoun--verb and subject pronoun--verb). The corpus included…

Academic language is the formal language that is common in books and at school, but that students are unlikely to encounter in everyday conversations with friends and family. Not only is academic language critical to school achievement but it is also foundational for the true comprehension of contentrich subjects. Academic language should permeate…

This study investigates the use of high-frequency cognitive verbs - think and believe - in Turkish L2 learners' interlanguage, both in terms of their verb senses and complementation patterns. In line with this purpose, a Sentence Production Task consisting of context-independent items and a Sentence Completion Task consisting of context-dependent…

Although a considerable number of studies have shown D(eterminer) elements, i.e. determiners and pronominal clitics, to be particularly vulnerable to impairment in monolingual children with Developmental Language Disorder (DLD), little is known about the use of appropriate or/and grammatically correct referring expressions in the children's…

This study examined linguistic development among both intermediate and advanced college-level second language (L2) learners during short-term study abroad summer programs in Spain. Participants completed a measure of overall proficiency, as well as assessments of receptive grammatical (morphosyntactic) and lexical (semantic) abilities at the…

Current research on cross-language transfer has focused primarily on literacy development. The present study extends the scope of existing research by focusing on argumentative reasoning, an important but under-research academic skill. A single-case study with a reversal design was conducted with four Chinese-English elementary students with the…

Mothers' provision of utterances with internal state words has been shown to influence infants' acquisition of internal state vocabulary and has been proposed to foster preschoolers' theory of mind development. In this article the authors examine maternal internal state speech during free play with infants at 13, 17, and 21 months. The study…