A basic question about bilingual development is how the acquisition of one language affects the acquisition of the other. Previous findings are few and mixed. The present study addressed this question with longitudinal data on the dual-language vocabulary growth of 149 US-born children from Spanish-speaking immigrant families, who were followed…

Despite extensive research and investment, persistent disparities in educational achievement continue to be observed for children from disadvantaged backgrounds. Public health experts emphasize the significance of early language experience and caregiver talk, also known as "language nutrition," in improving children's outcomes. A large…

High-quality lexical representations are important for reading comprehension; however, prior research has focused primarily on the verbal aspects of these lexical representations. In this article, the authors argue for the importance of considering nonverbal representational elements of lexical knowledge and for more systematic attention to how…

The first part of this paper discusses the rationale for universal grammar (UG) theory to explain first language acquisition. It also illustrates the issues of language acquisition Chomsky argued which could not be supported by behaviourist theories and shows how Chomsky proposed a solution to this problem through his theoretical model of…

Word learning is a crucial aspect of early social and cognitive development, and previous research indicates that children's word learning is influenced by the context in which the word is spoken. However, the role of emotions as contextual cues to word learning remains less clear. This study investigated word learning among 2.5-year-old children…

Cognitive development is often characterized in terms of discontinuities, but these discontinuities can sometimes be apparent rather than actual and can arise from continuous developmental change. To explore this idea, we use as a case study the finding by Stager and Werker (1997) that children's early ability to distinguish similar sounds does…

This dissertation articulates and defends a view about linguistic competence called 'variabilism'. According to variabilism, the epistemic demands of full linguistic competence vary in a particular way. More specifically, variabilism holds that different individual lexical application conditions (individually essential metaphysical ways of being…

The relationship between executive function and second-language ability remains contentious in bilingual children; thus, the current study focused on this issue. In total, 371 Uyghur-Chinese bilingual children ranging from 3 to 6 years old were assessed by a battery of tasks measuring language ability (expressive vocabulary tests, receptive…

Prosody is the fundamental organizing principle of spoken language, carrying lexical, morphosyntactic, and pragmatic information. It, therefore, provides highly relevant input for language development. Are infants sensitive to this important aspect of spoken language early on? In this study, we asked whether infants are able to discriminate…

This article is a critical review of a book by Sir William Wilde (better known as the father of Oscar Wilde) entitled "On the Physical, Moral, and Social Condition of the Deaf and Dumb" (1854). This book, which is based on the demographic and medical information that he collected from "deaf and dumb" people in the early 1850s,…

This paper explores preschool children's (aged 5:6) language development in nursery and at home. The study examines how children learn a new language in nursery and practise their learning at home. The data in this study is drawn from a long ethnographic research, which included two stages of data collection. I used participant observation, audio…

Familial risk for developmental dyslexia can compromise auditory and speech processing and subsequent language and literacy development. According to the phonological deficit theory, supporting phonological development during the sensitive infancy period could prevent or ameliorate future dyslexic symptoms. Music is an established method for…

Despite support for the importance of early language environments, little is known about the naturally occurring experiences children have in preschool settings. The current study sample included 91 children (M[subscript age] = 4.72 years; 56% male; 67% White) from 23 preschool classrooms and nearly 1500 h of language environment data from three…

This study investigated why object-gap relative clauses (RCs) are dominant in early child Mandarin. We discuss how restrictive-RCs differ from pseudo-RCs syntactically and pragmatically, and examine how these two types of RCs are distributed in the RC utterances of ten children and their caregivers. The results showed that (a) Mandarin-speaking…

This article presents a conceptual replication of Hashimoto and Egbert (https://doi.org/10.1111/lang.12353), a study that featured multivariate models where lexical sophistication variables accounted for word difficulty (yes-no recognition) better than frequency alone among learners of English as a second or foreign language from North America.…