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…

Through the application of the Douglas Fir Group's transdisciplinary framework, this study investigated how three levels of mutually dependent influence (i.e., the micro level of social action and interaction, meso level of sociocultural institutions and communities, and macro level of ideological structures) operate across time and space to shape…

Developing proficiency and intercultural competence are goals promoted by the Modern Language Association and widely shared by postsecondary second language programs across the United States. Although the development of proficiency has been studied extensively in this context, comparatively little is known about how intercultural competence…

This mixed-methods study explores the efficacy of a multidimensional identity measurement tool that aims to represent the diverse language experiences of heritage language learners (HLLs) and heritage language speakers (HLSs). Drawing on the thematic commonalities across 13 definitions of HLLs, a questionnaire was developed to capture age of…

Frequency and proficiency have been found to play an important role in second language (L2) phrasal processing. However, existing research has largely focused on English and other European languages, with other commonly used languages, such as Chinese, being largely disregarded. To fill this gap, we carried out two experiments to investigate how…

In the Yoruba community, proverbs are regarded as Yoruba philosophy repository, with wisdom, brevity, criticality, and stored experience that are believed to be a viable tool of acquiring the language. Hinging on reversing language shift model theory, the study investigated: (a) whether Yoruba proverbs are effective in the acquisition of Yoruba…

The effects of learner- and task-related variables on second language (L2) writing syntactic complexity (SC) have been extensively investigated. However, previous research has rarely assessed the reliability of computational tools for analyzing the SC of L2 spoken production, and we know less about the effects of such variables on L2 speaking SC.…

Emotions in foreign language (FL) learning have become an increasingly popular research avenue in applied linguistics. Such research is often carried out using linear correlational or regression methods, which are limited in the extent to which they can depict interrelations. In this study, we aimed to reexamine the relationships between the…

Dual language immersion (DLI) as an alternative model to monolingual English-medium education has continued to expand rapidly over the past decade. As this model continues to grow across the United States, stakeholders look to research to demonstrate sustainability and scalability of dual language programs. Drawing on 224 schools, the statewide…

Even though there is ample evidence that pronunciation plays a crucial role in effective second language (L2) communication, pronunciation training is frequently neglected in L2 classrooms due to time constraints or because instructors do not feel adequately prepared to teach pronunciation. To address this discrepancy, the present study…

Lexical sophistication has been an important indicator of productive lexical proficiency for almost 30 years. Although lexical sophistication has most often been operationalized as the proportion of low frequency words in a text, a growing body of research has indicated that a number of indices such as concreteness, hypernymy, and n-gram…

Although most children learn to communicate in their first language (L1), there is normal and expected variation in their rate of acquisition across all components of the language system. Until recently, most second language acquisition and second language (L2) researchers have assumed that individual differences (IDs) in L1 acquisition are small…

Evidence suggests that short-term study abroad experiences can help advance various dimensions of second language (L2) learners' linguistic competence. However, the extent to which gains following a brief sojourn are durable and maintained after immersion remains an open question. The present study examined both the immediate and sustained…

This study explored the influence of speech rate (normal vs. fast), sentence length (short vs. long), and second language (L2) oral proficiency on listening comprehension in L2 Spanish. Thirty-one native English-speaking learners enrolled in upper-level Spanish courses were aurally exposed to 8 sentences of each type of speed--length matrix, for a…

Recent research in second language acquisition suggests that a number of speed, breakdown, repair, and composite measures reliably assess fluency and predict proficiency. However, there is little research evidence to indicate which measures best characterize fluency at each assessed level of proficiency and which can consistently distinguish one…