The system of second person singular forms of address (2PS) in Medellín, Colombia is tripartite consisting of "tú, vos," and "usted," while also including the existence of a dual "usted." The current study compares usage of the intimate "usted" versus the distant "usted" with data from an oral…

Research has indicated that lexical richness is an important indicator of second language (L2) proficiency. However, most research has examined written, cross-sectional English L2 corpora and does not necessarily indicate how spoken lexical use develops over time or whether observed trends are stable across L2s. This study adds to previous…

While discourse markers (DMs) are crucial for coherence and interactional competence, previous research suggests that learners' usage of DMs differs from L1 speakers. Prior research has taken either a discourse-functional or interactional approach, yet combining these two methods may provide greater understanding of the unique learner…

Usage-based theories of language development underscore the importance of children using language to learn language. Few investigations have applied usage-based theories to dual language learners (DLLs), who comprise a growing share of children attending early education programs in the U.S. Three studies were carried out to investigate the role of…

This dissertation examines heritage language learners of Spanish enrolled in university Spanish courses, focusing on their strategic use of suprasegmental speech features in two speaking tasks. The research investigates attitudes' influence on heritage language learners' speech production in different task types. Participants engaged in two…

This longitudinal study explores the effects of time and proficiency pairing on the amount and purpose of L1 use in task-based peer interaction by EFL primary school learners. Most of the studies available to date on L1 use in peer interaction involve adult learners, and we have little empirical evidence on the role played by the L1 in child peer…

This study aimed to explore emotional regulation, alexithymia, and interpersonal relations in a Spanish sample of 146 adult deaf participants and 146 typical hearing participants. For the deaf sample, the associations between type of language used and the above variables were also analyzed. Results showed that deaf participants scored higher on…

Many second language (L2) learners participate in study abroad (SA) experiences believing their choice will be synonymous with increased interaction in the L2, from which enhanced linguistic gains will ensue. Nonetheless, one open question is whether SA participants actually engage in sustained L2 interaction while they are abroad. This paper…

Bilingual children, the majority of whom are Spanish-English learners, now constitute over a third of the preschool population in the United States (Migration Policy Institute, 2021). Bilingual children and their families face multiple barriers to high-quality early childhood education, which are largely due to the underutilization of culturally…

Speaking in a foreign/second language is a challenge for many learners, even when they have linguistic knowledge. Drawing on González-Lloret and Ortega's (2014) framework for technology-mediated tasks and MacIntyre's (2007) framework for willingness to communicate in a second language, this mixed methods study investigated the impact of…

Researchers agree that attention to bilingualism and biliteracy can and should be a goal in all educational settings where young dual language learners are present. The challenge, however, is how to promote biliteracy development while remaining congruent with principles of developmental direction, specifically the idea that children's…

This dissertation explores Spanish copular verbs, "ser" and "estar" (both 'to be' in English), in pre-adjectival contexts within two Spanish varieties: first-language (L1) Chilean speakers from Santiago (N = 29) and second-language (L2) English-speaking learners studying in Chile (N = 31). Bridging sociolinguistics and second…

The present study examined parents' and teachers' perceptions of student learning in Spanish-English Dual Language Education (DLE) programs during the COVID-19 pandemic. The participants included 72 parents of students from kindergarten to second grade and eight teachers in two schools in the southeastern U.S. Parents retrospectively reported…

It has long been recognized that collocations, or chunks of formulaic language, are essential and frequent in language (Henriksen, 2012; Sinclair, 2004). Therefore they are a crucial part of Second Language Acquisition (SLA). Linguistic scholars Pawley y Syder (1983: 192) remark that "in order to know a language, the [second language] (L2)…

The present research explores the interactional nature of oral tasks carried out in two types of learner dyads in terms of their likelihood to foster negotiation for meaning during Language Related Episodes (LREs). Quantitative data analyses reveal how learners in same L1 dyads, Spanish English as a Foreign Language (EFL) learners, and in…