Vocabulary knowledge plays an important role in language learning and language proficiency, but it is difficult to know how much of a role it plays without appropriate vocabulary measures. In this article, we first discuss learner vocabulary in our research on Korean as a second/foreign language. Unable to find appropriate measures for receptive…

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…

Research on language planning and policy (LPP) has transcended beyond enacting government-initiated language policy and progressed towards uncovering inherent power relations. The discourse-analytical approach (DA) effectively captures the relation between texts and other elements of social practices. Therefore, this approach has been adopted to…

The present study aimed to validate a 70-item Korean bilingual version of the Vocabulary Size Test (VST) using Rasch modeling. The goal was to assess the applicability of this Korean version of the VST for Korean learners of English in an English as a foreign language (EFL) context by examining validity evidence based on Messick's framework.…

This study suggests a conceptual framework for policy-driven test development and validation, using the Test of Proficiency in Korean (TOPIK) as an example context. By linking the literature on policy analysis and argument structure in the validation of testing, the strong relationships between policy and testing are illustrated. This rationalizes…

Given the lack of computational tools available for assessing second language (L2) production in Korean, this study introduces a novel automated tool called the Korean Syntactic Complexity Analyzer (KOSCA) for measuring syntactic complexity in L2 Korean production. As an open-source graphic user interface (GUI) developed in Python, KOSCA provides…

This study investigates the acoustic realizations of English phonemic contrasts by Korean EFL learners, comparing their productions with those of native English speakers. Focusing on the segmentally correct production, the research aims to determine if Korean learners' acoustic properties align with those of native speakers, influenced by second…

This study investigates how L1-Korean L2-English learners perform with regard to articles in both explicit and implicit tasks. It also examines the role of L1-transfer from Korean demonstratives to English definites in L2 article production. 21 native English speakers and 27 adult intermediate L1-Korean L2-English learners were tested. The…

University classrooms are increasingly populated by students with diverse nationalities and native languages (L1). The growing number of students in English-led classrooms who speak English as a second or lower language (L2) may face added difficulties in understanding the specific task objectives or directions, as explained by native-…

aaaPlural marking differs across languages. Some must mark plurality using an overt morpheme (e.g. English, Russian), while others mark it optionally (e.g. Korean) or lack an explicit plural morpheme (e.g. Chinese). This crosslinguistic difference in plural marking has received much attention in research exploring language transfer in the context…

The present study investigated whether adult learners of second language (L2) can automatically activate emotional connotation during emotional word recognition as compared native (L1) users and whether L2 use plays a significant role in it. The automaticity of activation was measured through the emotional Stroop task. In this task, emotional…

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,…

This study examines pragmatic resistance as a choice made by Chinese learners of Korean and the factors that contribute to this choice. Data were collected from 46 upper-intermediate Korean language learners through three different tools, including Discourse Completion Tasks, metapragmatic questionnaires, and retrospective interviews. Findings…

This study investigates (1) whether second language learners (L2ers) acquire the Mandarin system of pronouns and reflexives despite differences from their first languages (L1s) and (2) whether L1-English and L1-Korean L2ers differ due to L1-transfer. Unlike English, Mandarin and Korean allow long-distance (LD) reflexives. While…