There is a well-documented link between bilingual language development and the relative amounts of exposure to each language. Less is known about the role of quality indicators of caregiver-child interactions in bilingual homes, including caregiver input diversity, warmth and sensitivity. This longitudinal study examines the relation between…

Despite the widespread use and effectiveness of the Modern Language Aptitude Test (MLAT) composite score in predicting individual differences in L2 achievement and proficiency, there has been little examination of MLAT subtests, although they have potential for illuminating components of L2 aptitude and the mechanism of prediction. Here we use…

There are several benefits for Dual Language Learners (DLLs) when their home language is integrated into classroom instruction. For example, instruction in students' home language facilitates the learning of the new language more rapidly and supports bilingualism. One way to enhance young children's language learning is to engage families in home…

The purpose of this study was to examine the efficacy of a graphic organizer for improving the expository text comprehension of adolescent Spanish-English bilingual students with learning disabilities. Students were two females and one male. Using a multiple baseline single case design, researchers taught students to create a funnel map graphic…

This study examined whether the linguistic distance between the first (L1) and second (L2) language is a significant determinant of L2 writing skills of 292 adult immigrants from 39 different source countries, who were beginner learners of Spanish L2. Gender, age, length of residence in Spain, education level as a proxy for literacy skills in L1,…

This study details the development of a local test designed to place university Spanish students (n = 719) into one of the four different course levels and to distinguish between traditional L2 learners and early bilinguals on the basis of their linguistic knowledge, regardless of the variety of Spanish they were exposed to. Early bilinguals…

Seven cohorts of students (N = 258) who completed a K-5 Spanish Immersion (SI) program in a suburban California school district were followed longitudinally through middle and high school to understand their academic, language, and social emotional outcomes. Academic and language outcomes included Spanish classes and grades, standardized Math and…

Age of Acquisition (AoA) scores approximate the age at which a language speaker fully understands a word's semantic meaning and represent a quantitative measure of the relative difficulty of words in a language. AoA word lists exist across various languages, with English having the most complete lists that capture the largest percentage of the…

Study abroad is an important piece of the internationalization of curriculum and is particularly advantageous for second language learners. Many students study abroad to learn a language and the majority of students studying abroad enroll in shorter-term programs. Given their strong representation in the field of study abroad, the following…

With the increasing prevalence of autism diagnoses globally, the overall aim of this dissertation is to improve our understanding of the linguistic aptitude of autistic individuals. Given that the autism diagnosis is a spectrum, we rely on the Autism Quotient (AQ) test, which measures the quantity of autistic-like traits an individual possesses,…

This study is a replication and extension of Morgan-Short et al.'s (2018) investigation into the role of attention in input processing by L1-Polish learners of L2-Spanish, with proficiency and language of assessment explored as two key methodological factors. Our aims were twofold: to investigate learners' comprehension in different conditions…

Age of Acquisition (AoA) scores approximate the age at which a language speaker fully understands a word's semantic meaning and represent a quantitative measure of the relative difficulty of words in a language. AoA word lists exist across various languages, with English having the most complete lists that capture the largest percentage of the…

This study explored the effects of learning activities which encouraged positive crosslinguistic influence from L2 Spanish to L1 English grammar in young learners. The learners (N = 82) were studying Spanish as their compulsory foreign language at an English state primary school in the UK. As part of ten timetabled Spanish classes over a period of…

Measuring language dominance, broadly defined as the relative strength of each of a bilingual's two languages, remains a crucial methodological issue in bilingualism research. While various methods have been proposed, the Bilingual Language Profile (BLP) has been one of the most widely used tools for measuring language dominance. While previous…

The rising demand for dual-language immersion (DLI) programs, which offer core instruction in two languages from early grades onward, has raised questions about program design and access. We leverage the rapid expansion of DLI schools across the U.S. state of Utah to estimate effects of DLI program availability on the academic achievement of…