Lexical diversity (LD) is an important indicator of second language lexical development. Much research has investigated LD indices, with a focus on learners of English. However, further research is needed in languages that are typologically distinct from English, such as Korean. In this study, we evaluated the reliability and validity of LD…

This research conducted diagnostic assessment of problems in first-year undergraduates' English academic papers and tracked potential sources of the problems to the writing process and strategy use. Data collected include 339 term papers and interviews with 17 students. The samples were manually error tagged and marked against a detailed…

In language testing programs, different test forms are often used to administer the same test. Demonstrating the comparability of these forms is essential to avoid criticisms of potential test unfairness. However, studies with this objective are scarce. This study aims to investigate the extent to which the picture-prompt writing tasks of three…

This research investigated the relation between rater cognition and rater behavior, focusing on differential severity/leniency regarding criteria. Participants comprised a sample of 18 raters examined in a previous rater cognition study (Eckes, 2008b). These raters, who were known to differ widely in their perceptions of criterion importance,…

Research on the utility of feedback to raters in the form of performance reports has produced mixed findings (Lunt, Morton, & Wigglesworth, 1994; Wigglesworth, 1993) and has thus far been trialled only in oral assessment contexts. This article reports on a study investigating raters' attitudes and responsiveness to feedback on their ratings of…