One major threat to validity in high-stakes testing is construct-irrelevant variance. In this study we explored whether the transition from a paper-and-pencil to a computer-based test mode in a high-stakes test in China, the College English Test, has brought about variance irrelevant to the construct being assessed in this test. Analyses of the…

In recent years, the emphasis in second language (L2) oral proficiency assessment has shifted from linguistic accuracy to discourse strategies such as the ability to initiate, respond, and negotiate meaning. This has resulted in a growing interest in the discourse analysis of students' performance in different oral proficiency assessment formats.…