どうぞ御覧ください。
http://www.languagetestingasia.com/content/6/1/2
Validity argument for the VELC Test® score interpretations and uses
Takaaki Kumazawa*, Tetsuhito Shizuka, Masamichi Mochizuki and Atsushi Mizumoto
Language Testing in Asia 2016, $article.volume.volumeNumber:2 doi:10.1186/s40468-015-0023-3
