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Min, Kyungmo. 2014. A Study on the Size and Repeatability of Vocabulary in Advanced-level Korean Textbooks. The Language and Culture 10-1: 79-100. This study aims to analyze, via quantitative survey, the size and repeatability of vocabulary present in three recently published advanced-level Korean textbooks. We identified the following quantitative properties of vocabulary in the three current advanced-level textbooks: 1. A single unit of advanced-level Korean textbooks has shown to have an average of approximately 5,800 tokens, with any one unit of textbooks carrying 4,000～ 8,000 tokens. Each of the units includes about 3,100 full words on average with the exception of postpositional particles, endings, markers, affixes, and proper nouns. 2. The total number of vocabulary types in the textbooks comes to 14,058. Each textbook can have as few as 6,364 types and as many as 9,089 types. 3. One volume of a textbook has 5,138 types on average. 4. A single unit of the textbooks has 1,062.1 types on average. Each of the units in the textbooks can have as few as around 740 types and as many as around 1,460 types. 5. The repeatability of vocabulary in the three advanced-level Korean textbooks is 13.4 times in total, about 8 times per textbook, and about 6 times per volume. In addition, the intra-unit repeatability of words comes to approximately 3 times per word. These figures are relatively constant regardless of the size of the textbooks or units within the textbooks. 6. In a survey of the inter-unit repeatability, words which appear in only one unit are the greater majority. This means that a word in Korean advanced-level textbooks is usually presented unit-independently. (Keimyung University)