From the very first moments of their lives, infants selectively attend to the visible orofacial movements of their social partners and apply their exquisite speech perception skills to the service of lexical learning. Here we explore how early bilingual experience modulates children's ability to use visible speech as they form new lexical…

This dissertation investigates when and how children figure out the force of modals, that is, when and how they learn that "can/might" express possibility, whereas must/have to express necessity. Learning modal force raises a logical "Subset Problem": given that necessity entails possibility, what prevents learners from…

While previous work on postverbal subjects in Italian has shown that young children are sensitive to the effects of argument structure and definiteness, little is known about the acquisition of postverbal subjects at the VP-periphery. In response, the present study investigated such subjects under new-information focus by monolingual Italian…

This study investigates the acquisition of the Imperfective verb inflection paradigm in Emirati Arabic (EA), to determine whether the learning process is sensitive to the phonological and typological properties of the input. We collected data from 48 participants aged 2;7 to 5;9 years, using an elicited production paradigm. Input frequencies of…

This study collected interview data from parents of five children identified as having special education needs who were attending or had attended a French Immersion program in Toronto, Ontario. The experiences of these families were qualitatively analyzed to uncover critical themes surrounding experiences and beliefs around French Immersion…

It has been well-documented that although children around 4 years start to attribute false beliefs to others in classic false-belief tasks, they are still less able to evaluate the truth-value of propositional belief-reporting sentences, especially when belief conflicts with reality. This article investigates whether linguistic cues, verb…

Parents with fewer educational and economic resources (low socioeconomic-status, SES) tend to speak less to their children, with consequences for children's later life outcomes. Despite this well-established and highly popularized link, less research addresses why the SES "word gap" exists. Moreover, while research has assessed…

This dissertation contributes new data to the debate on the source and manner of transfer in third language (L3) acquisition. The "L1 Status Factor" (L1SF, e.g., Hermas, 2010; Leung, 2002; Lozano-Pozo, 2003) maintains that the transfer source is the native language (L1), whereas the "L2 Status Factor" (L2SF, Bardel & Falk,…

Autism is a neurodevelopmental disorder with deficits in communication, social interaction, and restricted and repetitive patterns of behavior. Due to these restrictions, one can cite the literacy process as a learning problem for people with autism. Although psychological interventions have been used to mitigate this problem, technology plays an…

From the second year of life, children with typical development (TD) demonstrate the ability to form word-word relations. However, this ability has received little attention in children with Down syndrome (DS). We investigated their ability to establish associative relationships between words that tend to occur in the same context. Two groups of…

This preliminary study examined the relationship between clinicians' perceptions (i.e., speech pathologists) of children's scores on the Assertiveness scale of the Teacher-Child Rating Scale 2.1 and gains in naming and defining words following English-only or Spanish--English intervention for emergent bilinguals (EBs). Twenty-eight…

Positive associations have been found between executive function (EF) and language skills in young children. However, the relations between specific components of EF and language are unclear. This study examined these relations among young children in three Asian countries. A series of EF and language tasks was administered to 700 children (350…

This dissertation investigates intuitions about Spanish syllable structure and whether or not word segmentation strategies are affected by these syllabic intuitions. The study utilizes monolingual Spanish speakers, L1 Spanish speakers who are L2 learners of English and L1 English speakers who are L2 learners of Spanish. For Spanish syllabic…

The diagnostic characteristics of autism spectrum disorder (ASD) includes challenges in social communication skills. Among different components of social communication, language, particularly vocabulary, must be supported early in children's development as language is shown to be associated with academic, social, cognitive, and adaptive skills and…

Two-way immersion (TWI) programs are an increasingly popular educational model designed to foster academic achievement and develop high levels of bilingualism, biliteracy, and sociocultural competence (Howard et al., 2018). TWI has been shown to be highly effective at promoting English-language development and academic content learning, as well as…