Lexical diversity (LD) is an important indicator of second language lexical development. Much research has investigated LD indices, with a focus on learners of English. However, further research is needed in languages that are typologically distinct from English, such as Korean. In this study, we evaluated the reliability and validity of LD…

Elicited Imitation Tests (EITs) are commonly used in second language acquisition (SLA)/bilingualism research contexts to assess the general oral proficiency of study participants. While previous studies have provided valuable EIT construct-related validity evidence, some key gaps remain. This study uses an integrative data analysis to further…

With the present study I investigated the sources of score variance and dependability in a local oral English proficiency test for potential international teaching assistants (ITAs) across four first language (L1) groups, and suggested alternative test designs. Using generalizability theory, I examined the relative importance of L1s (i.e., Indian,…

Pronunciation presents a significant, persistent challenge to second language (L2) learners (Derwing & Munro, 2015; Piske, McKay, & Flege, 2001). Fortunately, pronunciation instruction works (Lee, Jang, & Plonsky, 2015). However, pronunciation receives relatively little attention in language classrooms. Further complicating the matter…

This study employs eye-tracking to investigate how first (L1) and second language (L2) glosses affect lexical uptake and reading behaviors in L2 learners of English. The study also explores the relationship between lexical uptake and reading behaviors as a function of gloss type. To investigate this, 81 Korean university students were asked to…

This study investigated the effects of working memory capacity (WMC), first language (L1) syllogistic inferencing ability, and second-language (L2) linguistic knowledge on L2 listening comprehension for passages of different lengths. Participants were 193 Korean ninth-grade learners of English. A path analysis was used to examine multivariate…

Using a lexical decision task, Wolter and Yamashita (2015) showed that collocations that exist only in L1 but not in L2 were not processed faster than collocations that only exist in L2 but not in L1 or a random combination of two words. This result seems to support the age/order of acquisition effects (Carroll & White, 1973) over Jiang's…

This study examined the impact of the manipulated task complexity (Robinson 2001a, 2001b, 2007, 2011; Robinson & Gilabert, 2007) on second language (L2) speech comprehensibility. I examined whether manipulated task complexity (a) impacts L2 speech comprehensibility, (b) aligns with L2 speakers' perception of task difficulty (cognitive…

The present study examines Korean high school English teachers' and university students' perceptions about the criterion-referenced assessment of English in CSAT. A total of 400 participants (149 teachers and 251 students) answered an online questionnaire. Teachers showed more positive attitudes than students in their perceptions about the…

Despite the known roles of working memory and background knowledge in the process of reading comprehension, few attempts have been made to elucidate the interaction between these two individual difference factors in second language (L2) reading comprehension. The current study investigated whether and how working memory and background knowledge…

The purpose of diagnostic language assessment is to identify learner strengths and weaknesses so that subsequent learning activity can be planned according to learner needs, a purpose which aligns with pedagogical recommendations to individualize instruction. Indeed, the extent to which diagnostic assessment can inform the selection of…

Team teaching is re-emerging as a relevant research topic in language education due to the complexity and realities of globalization (Williams, Evans, & Metcalf, 2010). This qualitative study examined the characteristics of high-performing teams and their leadership in foreign language programs. Fifty-four college-level teachers, department…

This study investigated the most effective way to present an instructional video that contains words in the students' second language. Korean-speaking university students received a 16-min video lesson on Antarctica that included English narration (video + narration group), English text subtitles (video + text group), or English narration with…

The current study compares simultaneous vs. successive bilingualism through a mixed-method research design with four four-year-old Korean-English bilingual children who were born and raised in the USA. Two simultaneous bilinguals were exposed to Korean and English from birth, whereas two successive bilinguals were exposed to Korean from birth, but…

Multilingual learners (MLs) are students whose primary language is not English and are eligible for English language development services through the Transitional Bilingual Instruction Program (TBIP). Eligible MLs receive TBIP services until they become proficient in English. During the 2022-23 school year, 149,357 students were identified as…