Linguistic research on bilinguals has sometimes focused on either first vs. second acquired language or dominant vs. non-dominant language despite situations in which the dominant and first language are no longer the same. Many bilinguals in the U.S. and other countries experience a change in language dominance from a home language to a majority…

In this preregistered, longitudinal study of early code-switching, 34 US-born, Spanish-English bilingual children were recorded with a bilingual family member at 2;6 and 3;6, in Spanish-designated and English-designated interactions. Children's Spanish and English expressive vocabulary and their exposure to code-switching were measured through…

Despite the worldwide prevalence of multilingualism, the knowledge of the relationship between domain-general cognitive control and multilingual language control remains scant. Here we provide new insights into this issue by examining systematically how different components of inhibitory control (i.e., response inhibition and interference…

Purpose: The current study examined language control and code-switching in bilingual children with developmental language disorder (DLD) compared to bilingual peers with typical language development (TLD). In addition, proficiency in each language and cognitive control skills were examined as predictors of children's tendency to engage in…

This study examines how dominance and proficiency relate to Spanish heritage speaker vowel productions. Participants' normalized vowel measurements were compared to nonheritage native speakers of Spanish and English using the Pillai score, an output of Multivariate Analysis of Variances (MANOVAs) that allows comparisons across distributions of two…

Purpose: This article aims to describe how exemplar variability can manipulate the word learning environment to maximize within- and cross-language generalization in Spanish--English bilinguals. Furthermore, we examined sources of individual variability that predicted word learning. Method: Nineteen Spanish--English bilingual children participated…

The current study examines the interplay between global and local processes in bilingual language control. We investigated language-switching performance of unbalanced Arabic-Hebrew bilinguals in cued picture naming, using 5 different cuing parameters. The language cue could precede the picture, follow it, or appear simultaneously with it. Naming…

American schools today display unprecedented levels of diversity in regard to the linguistic, socioeconomic, and cultural backgrounds of their student population. Increasingly, more American students are also emergent bilingual learners. Despite this fact, most of the standardized assessments used by schools have been designed and normed for…

The U.S. government encourages the study of critical languages spoken in geographic areas of strategic importance to U.S. national security and the global economy through a variety of discretionary grants and scholarship programs. U.S. students are traditionally underrepresented in the study of these languages; however, many of the nation's K-12…

Several, but not all, models of language control assume that highly proficient bilinguals implement little to no inhibition during bilingual language production. In the current study, we tested this assumption with a less equivocal marker of inhibition (i.e., n-2 language repetition costs) than previous language switching studies have. N-2…

According to the critical period hypothesis, the earlier the acquisition of a second language starts, the better. Owing to the plasticity of the brain, up until a certain age a second language can be acquired successfully according to this view. Early second language learners are commonly said to have an advantage over later ones especially in…

This paper examines the linguistic landscapes of 15 Bangkok neighbourhoods to explore questions of language contact, language mixing and language dominance. It provides a linguistic framework for analysis of types of codemixing. It highlights the importance and influence of English as a global language. It examines the signs from government…

Five experiments are reported in which the picture naming performance of bilingual speakers in a language-switching task was explored. In Experiment 1, Spanish learners of Catalan and Korean learners of Spanish were asked to perform a switching task between their first and dominant language (L1, Spanish or Korean) and their second language (L2,…

The notion of language dominance is often defined in terms of proficiency. We distinguish dominance, as a property of the bilingual mind and a concept of language knowledge, from proficiency, as a concept of language use. We discuss ways in which language dominance may be assessed, with a focus on measures of mean length of utterance (MLU).…

This monograph presents language factors related to bilingualism, to assist educators to distinguish normal phenomena due to bilingualism from symptoms of a handicapping condition. The first section, called "The Nature of Bilingualism," discusses the diversity of bilingual students and their dynamic use of two languages, focusing on simultaneous…