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…

This paper assesses the construct validity of the dimensions of teaching presence, one of three types of presence articulated in Garrison, Anderson, and Archer's [Garrison, D.R., Anderson, T., and Archer, W. (2000). "Critical inquiry in a text-based environment: Computer conferencing in higher education." "The Internet and higher education", 2,…