The measurement of second language (L2) productive lexical proficiency has driven a great deal of research over the past two decades. Research has indicated that more proficient speakers and writers tend to use a wider range of words and that more proficient writers tend to use words that are more sophisticated (less frequent in reference…

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…

This dissertation provides an in-depth linguistic description and analysis of the discourse in a target domain of digital games, a domain referred to as "single player offline role-playing games." Gaming discourse from this domain is represented by a 4.8-million-word corpus of spoken and written language extracted from the digital files…

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…

Expressing emotions in a narrative requires a high degree of narrators' involvement in and reflection of personal experiences. An array of complex emotions is reflected in the narrators' use of a wide range of language and paralanguage tools when they share their feelings with their audience. This study attempted to investigate how female…

This study examined the perceived and assessed speaking proficiency levels of 10 in-service Spanish teachers, their use of Spanish in and outside of work, and factors that motivate or hinder the maintenance or development of their proficiency. It also compared their current proficiency levels with their proficiency levels before completion of…

The Direct Method, a pedagogical approach for teaching additional languages through immersion, emphasizes oral interaction and everyday language usage to facilitate language acquisition. This method discourages reliance on translation and minimizes emphasis on grammatical rules. However, a fundamental question arises about the effectiveness of…

This study examined the role of parents' early home language use in the English reading development of emergent bilinguals (N = 3,058) and how their relations are moderated by children's oral English language proficiency using longitudinal data from kindergarten to eighth grade (ages 6-15 years). Results from multi-group latent basis growth models…

This study quantitatively measures the variation in language derived from a targeted set of digital game mechanics. Mechanics refer to the design elements of a game that make up the overall gameplay experience, determining player actions and the degree of language interaction. A corpus was compiled by extracting the language files from two popular…

Interest in formal Nuosu Yi language programmes has been waning in Liangshan, China, even though Nuosu Yi continues to be widely spoken among Yi residents. In this paper, we adopt Hornberger (2004. "The Continua of Biliteracy and the Bilingual Educator: Educational Linguistics in Practice." "International Journal of Bilingual…

In comparative studies focusing on context of learning, the main contexts under investigation have been study abroad (SA), at-home formal instruction (AH), and domestic immersion (IM). With the global status of English and its burgeoning popularity as a medium of instruction in countries where English only holds the status of a lingua franca, a…

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…

Communication in the real world often entails the interpretation, evaluation, and integration of content from different sources. However, it appears that the ability to integrate content into discourse has not been explicitly scored for in existing studies. This study operationalizes content integration in the analytic scoring of a…

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…