Purpose: This meta-analysis study aimed to determine the optimal level of talker variability in training to maximize second-language speech learning. Method: We conducted a systematic search for studies comparing different levels of talker variability in nonnative speech training, published through July 2024. Two independent reviewers screened…

Purpose: The current study examines bilingual children's development of Spanish and English morphosyntax structures over the period of 1 year. Identification of morphosyntax forms clustered by difficulty can elucidate their development and guide clinicians to select appropriate targets for intervention and monitoring. Specifically, we aim to…

Purpose: This study addresses the lack of a short Communicative Development Inventory (CDI) form tailored to Saudi Arabic, specifically designed based on local norms, for assessing early communicative skills in toddlers. The JISH Arabic CDI: Words and Sentences Short-Form (JACDI: WS-SF) is introduced to meet this need. This tool is particularly…

Background: Children with hearing impairment (HI) are at risk for language difficulties, which can persist during childhood. There is a lack of clinical language tests adapted for young preschool children, enabling early identification of language delays. The expressive phonological test PEEPS-SE could enable such testing in these ages. Aims: The…

Observed parental sensitivity during a parent-child teaching task and free-play task was tested as mediators of the association between family socioeconomic risk and child receptive language at 48 months, consistent with family investment theory. Parents (n = 881 mothers; 624 fathers, data collected between 2006-2008) and their 5-month-old…

Research suggests that girls acquire language faster than boys, with gender differences most pronounced in vocabulary acquisition during early childhood. This study examines the role of gender in the acquisition of vocabulary and morphosyntax in Palestinian Arabic-speaking children aged 18 to 36 months. Using the Palestinian Arabic Communicative…

This study examined how unimodal and bimodal learning conditions impact L2 vocabulary processing and learning, comparing reading only (RO) and reading while listening (RWL) groups. 119 high intermediate-advanced English learners read or read-while-listening a short story embedded with 25 target pseudowords, repeated 10 times each, and had their…

Domain-general Grit has been criticised as being indistinguishable from Conscientiousness and as a weaker predictor than Cognitive Ability. Given the recent rise of L2 Grit literature -- a domain-specific form of Grit in language learning -- we examine whether these criticisms of general Grit are also applicable to L2 Grit. Domain-general Grit, L2…

This study examines how multilingual caregivers use their linguistic resources to support their autistic children's language development, challenging historical narratives recommending therapists use only one language, English. Using a critical language socialization framework in which multilingualism is considered a practice that transcends…

In this essay, we consider recent narratives in the science of brain development under poverty in relation to the older idea of the culture of poverty. We argue that in theorizing poor parenting and deficient linguistic stimulation as the primary pathways of influence through which poverty exerts its damaging effects on the brain, brain science…

Purpose: Difficulty with marking past tense verbs is a clinical indicator of language disorders. However, there is too little information on language development in bilingual children living in multilingual and multicultural countries like Singapore to accurately diagnose language disorders. In this study, we aimed to understand language…

Purpose: The aim of this study was to document speech sound development across early childhood from a dynamic assessment (DA) perspective that captures a breadth of linguistic environments using the Glaspey Dynamic Assessment of Phonology (Glaspey, 2019), as well as to provide normative data for speech-language pathologists to compare speech…

Many children grow up hearing multiple languages, learning words in each. How does the number of languages being learned affect multilinguals' vocabulary development? In a pre-registered study, we compared productive vocabularies of bilingual (n = 170) and trilingual (n = 20) toddlers aged 17-33 months growing up in a bilingual community where…

The Yucatec Maya language has a highly complex deictic system with interesting typological differences that in addition to demonstratives and locative adverbs also includes ostensive evidentials and modal adverbs. Given that deictic words are among the first that children produce, the aim of this study is to identify the early acquisition that…

This article reviews pretend play and its impact on and association with children's language. Studies have shown the significant relationship between the two domains; however, more intervention research needs conducting to validate the causal impact of pretend play. Nevertheless, several studies exploring its effects on early language reported…