Background: Research on the grammatical characteristics of children with developmental language disorder (DLD) across languages has challenged accounts about the nature of DLD. Studies of the characteristics of DLD in different languages can reveal which components of DLD emerge irrespective of language and which components are language specific.…

Codeswitching is a common feature of bilingual language practices, yet its impact on word learning is poorly understood. Critically, processing costs associated with codeswitching may extend to learning. Moreover, verbs tend to be more difficult to learn than nouns, and the challenges of learning verbs could compound with processing costs…

This study examined the influence of cognate status and language distance on simultaneous bilingual children's vocabulary acquisition. It aimed to tease apart effects of word-level similarities and language-level similarities, while also exploring the role of individual-level variation in age, exposure, and nontarget language proficiency. Children…

Background: This study explores how family language policies (FLPs) in multilingual homes where isiXhosa is the primary language influence caregiver choices regarding children's language development and education. Objectives: The study aims to give insight on how non-nuclear family structures in a selected sample of Western Cape families are…

This article presents a theoretical review of and methodological guidelines for the study of two key notions in second language acquisition research, complexity and difficulty. The term "complexity" has gained considerable currency over the past decades and has taken on a wide range of meanings. We argue for a more restricted…

People use different communication patterns based on the context and who they are addressing. These differences, known as linguistic register, are common across human speech and recognized early in development. Here, we examine 4-11-year-old American children's (N = 227) ability to use linguistic registers to determine a speaker's addressee as…

This study analyzed linguistic errors as part of the Differentiated Distance Education of Turkish as a Foreign Language Project, which pursues the development of an adaptive MOOC for Turkish as a second language. Therefore, the Turkish CEFR (Common European Framework of Reference for Languages) A1-level writing exam papers of 177 learners were…

This paper provides fresh insights on how PIs (Polarity Items) in non-veridical contexts (questions and conditionals) are represented in the grammar of multilingual learners of Catalan at different stages of development. It explores how this non-native grammatical system interacts with other previously acquired systems of negation and the implicit…

While it is widely accepted that language teachers require knowledge of second language acquisition (SLA) (Richards, 2010), what about content teachers, who are increasingly required to help develop their learners' academic language proficiency? How much do they need to know about SLA theories and how can they acquire such knowledge and expertise?…

Purpose: Prior work has found that "late talkers" (LTs) as a group continue to demonstrate lower language and reading outcomes compared to their typically developing (TD) peers even into young adulthood. Others identified that children diagnosed with developmental language disorder (DLD) show difficulties later with theory of mind (ToM)…

Based on findings from a variety of research, Shin and Miller (2022) propose a 4-step process that children go through as they learn sociolinguistic variation. Their proposal raises many interesting questions that should inspire future research. Here, I discuss their Step 1 -- the stage in which, according to their proposal, children produce only…

Numerous studies indicate that the language and literacy development of young children is highly contingent upon the construction of an enriching home literacy environment. Using sociocultural theory as a framework, in this article I explore how a bilingual child's language and literacy acquisition is embedded as a social practice within the home…

Purpose: The Arabic verb system features a nonlinear root and pattern derivational morphology. Previous studies suggest that young Arabic and Hebrew speakers' early verb use is based on semantic complexity rather than derivational morphological structure. The present study examines the role of morphological and semantic complexity in the emergence…

Negation is a cornerstone of human language and one of the few universals found in all languages. Without negation, neither categorization nor efficient communication would be possible. Languages, however, differ remarkably in how they express negation. It is yet widely unknown how the way negation is marked influences the acquisition process of…

This study explores the perspectives of the two authors, who have very different language backgrounds, reflecting the subtleties of first and additional language development. We distinguish between a 'literacy-track' (i.e. starting from written language) and an oracy track (starting from spoken language). We draw on duoethnography for our dialogic…