The primary purpose of this study was to provide preliminary validity evidence for a 140-item form of the Vocabulary Size Test, which is designed to measure written receptive knowledge of the first 14,000 words of English. Nineteen native speakers of English and 178 native speakers of Japanese participated in the study. Analyses based on the Rasch…

Analyzed and validated revised versions of the 2000 Word Level and the University Word Level of Nation's Vocabulary Levels Test, which can be administered for course planning and placement in language programs. Japanese high school and university students (n=496) completed four forms of the 2000 Word Test, and 464 completed four forms of the…