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…

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…

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…

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…

Despite the importance of having a reliable and valid measure of Second Language (L2) proficiency, L2 researchers of less commonly taught languages rarely have such a tool. Existing proficiency measures (e.g., DLPT, OPI) are often costly, labor-intensive, time-consuming, or unavailable to the public. With the intent to provide a practical and…

The development of an indirect oral proficiency test for foreign languages by the Defense Language Institute is described. The technique uses taped questions to elicit answers, also taped, that are evaluated according to the Foreign Service Institute's oral proficiency rating scale of 0 to 5. Tape recordings are used because of the large numbers…