カタギリ　カズヒコ   KATAGIRI Kazuhiko   片桐 一彦    所属   専修大学  文学部    専修大学大学院  文学研究科    職種   教授
言語種別	英語
発行・発表の年月	2007/10
形態種別	研究論文（学術雑誌）
査読	査読あり
標題	Examining the rationale of vocabulary size tests based on word-frequency levels
執筆形態	単著
掲載誌名	The Japan Language Testing Association Journal, vol.10
巻・号・頁	10,pp.36-55
総ページ数	20
概要	Mochizuki's (1998) Vocabulary Size Tests (VSTs) have three forms, which are made up of seven word-frequency levels (1,000, 2,000, 3,000, 4,000, 5,000, 6,000, and 7,000 word-frequency levels) to measure how many of the most frequently-utilized 7,000 words an examinee knows. In this study, the author will examine whether the rationale of estimating receptive vocabulary size of Japanese learners of English based on each word-frequency level, which adopts the stratified sampling method, is appropriate (in other words, it will partially examine the validity of Mochizuki's VSTs) from the psychometric viewpoint as well as reviewing the previous studies utilizing or analyzing Mochizuki's VSTs. University students majoring in English took six sections (2,000-7,000 word-frequency levels) in each of the three forms of Mochizuki's VST. . . .