「日本人大学生のための標準プレイスメント・テスト開発と妥当性の検証」
靜 哲人・望月正道
が掲載されました。
VELC Test の開発の経緯を説明し、実施データから読み取れるテスト（得点）の信頼性や妥当性を、ラッシュモデリングや SEM など、さまざまな角度から検証したものです。
是非、お読みください。
Abstract
This paper reports on the development and validation
of a new English placement test specifically designed for Japanese university
students. After discussing problems with EFL placement tests currently used at
tertiary institutions in Japan, the paper describes the concepts, specifications,
and development process of the new test. It then presents the results of
validation attempts based on the response data collected from a sample of 1,800
Japanese EFL learners. The main findings are: (a) the test exhibits a very high
Rasch person reliability of .94, with its items well targeted for the intended
population; (b) the test consists of items with quite a wide range of
difficulty and those difficulties are invariant across sub-samples; (c) the
test produced substantially different mean scores for the 18 institutions at
which the participants were enrolled; (d) the test exhibits a high
criterion-related validity against the TOEIC(R) test, predicting 68%
of its total score variance; and (e) the test data show the best fit to a
three-factor correlated model. The paper concludes with the interpretation that
the evidence gathered illustrates the validity of the new test.
Key
words:
プレイスメント・テスト, テスト開発，ラッシュ・モデリング，妥当性，構造方程式モデリング (SEM)
