Instructional Design Definition of Terms

11 Table 2.1 Vocabulary Size to Get 98 Coverage in Various Kinds of Written Texts 1 Measuring Vocabulary Size It is not easy to plan an appropriate vocabulary development program without knowing the students’ vocabulary size. Accordingly, Nation 2012 states that vocabulary size measurement is important for planning, diagnosis, and research. The result of the vocabulary measurement can be used as the guideline to plan an appropriate vocabulary development program. a Receptive Vocabulary Size Test RVST Receptive Vocabulary Size Test RVST is a kind of test to measure the controlled receptive vocabulary. It was originally created by Nation 1983 and then was revised and expanded by Schmitt and Clapham 2001. The RVST categorizes the knowledge of vocabulary based on the word frequency of 2,000 word level, 3,000 word level, 5,000 word level, and 10,000 word level. The RVST consists of 150 items with 30 items in each level. The words are randomly selected from the lists. For each item, there are three words that are required to be selected from a group of six in order to match with the corresponding paraphrase. The example of RVST is shown in Figure 2.2. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI 12 Figure 2.2 Example Test Item of Receptive Vocabulary Size Test b Vocabulary Size Test VST Vocabulary Size Test and Receptive Vocabulary Size Test are quite different. The goal from the Vocabulary Size Test itself is to measure the second language learner’s receptive vocabulary in English. However, Nation 2012 defines that VST is designed both for the first and second language learner’s written receptive vocabulary in English. The VST contains 140 multiple-choice items with 10 items from each 1,000 family level with the form of a short non-defining context. Later on, the students’ total score needs to be multiplied by 100 in order to get the total score of receptive vocabulary size Nation, 2012. The example of the test items is shown in Figure 2.3. Figure 2.3 Example Test Item of Vocabulary Size Test SEE: They saw it. a. cut b. waited for c. looked at d. started 2 Sources of Word Lists The source of word lists used by the researcher is the General Service List GSL developed by West 1953. In 1953, West published a list of about 2,000