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LexKO: A quick, reliable lexical test of Korean language proficiency
Charles B Chang1, Sunyoung Ahn2,3, Youngjoo Kim4
1Department of Linguistics and Translation, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR. cbchang@post.harvard.edu.
Behavior Research Methods
|October 21, 2025
Summary
Researchers developed LexKO, a brief Korean language proficiency test. This reliable, 60-item lexical test is freely available and correlates with standardized Korean proficiency measures.
Area of Science:
- Second Language Acquisition
- Multilingualism
- Psycholinguistics
Background:
- Objective proficiency measures are needed for diverse language users.
- Short, reliable lexical knowledge tests are emerging in various languages.
- Korean language learning is rapidly expanding globally.
Purpose of the Study:
- To describe the development of LexKO, a brief lexical test for Korean proficiency.
- To outline LexKO's logic, composition, application, and constraints.
- To provide a freely accessible tool for Korean language assessment.
Main Methods:
- Development of a lexically based Korean proficiency test (LexKO).
- Three rounds of pilot and validation testing.
- Inclusion of both first- and second-language Korean speakers in validation.
Main Results:
- A highly reliable 60-item Korean test (LexKO) was finalized.
- LexKO can be completed in a few minutes.
- LexKO scores significantly correlate with standardized Korean proficiency test scores.
Conclusions:
- LexKO offers a quick and valid measure of Korean language proficiency.
- The test is suitable for use in multi-part studies.
- LexKO is a valuable, freely available resource for researchers in Korean language acquisition.
Keywords:
KoreanLanguage assessmentLanguage learningLanguage proficiencyMultilingualismTOPIKVocabularysecond language acquisitionMore Related Videos
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