한국어 학습자의 숙달도별 어휘 사용 양상

Study on Korean language learner’s vocabulary usage

This study is a statistical analysis of Korean language learners’ vocabulary usage according to the learning proficiency. This study was analyzed using a large Korean learner corpus built by the National Institute of Korean Language. Korean language learners used 249 words and 97 types on average, and as Korean language proficiency increased, the number of words increased by 163 and word types by 54 on average. In addition, as a result of analyzing the use of educational vocabulary of Korean language learners, as the learner's level improved, the percentage of beginner’s vocabulary decreased and the percentage of intermediate and advanced vocabulary increased. At all levels, the basic vocabulary was used a lot. As the learning level improved, the types of words used increased, but the use of high-level words did not increase significantly. The use of high frequency vocabulary by Korean language learners decreased more slowly than Koreans’ use of modern language. The ratio of use of educational vocabulary between advanced Korean learners and modern Korean is very similar. However, advanced Korean language learners used fewer advanced vocabularies than Koreans. Among the high frequency vocabulary, vocabulary with basic semantic function showed consistent usage regardless of Korean language proficiency. Also, the vocabulary usage pattern by theme was different according to the level of Korean language proficiency.