An Oral Proficiency Interview (OPI) may be evaluated either during the interview procedure (direct-method) or from a tape-made oral interaction (semi-direct method). Such variety in methods of assessment can influence test takers' scores extensively. However, it is not conclusive whether such differences are due to test format or something else.…

Sometimes, program evaluations report no difference in outcomes between persons given a program and those not given the program. Is this because the program does not work, or because it was poorly implemented? Achieving high quality program implementation is critical to achieving anticipated outcomes, and researchers have made considerable…

Since the meta-analysis by De Dreu and Weingart (2003b) on the effects of intragroup conflict on group outcomes, more than 80 new empirical studies of conflict have been conducted, often investigating more complex, moderated relationships between conflict and group outcomes, as well as new types of intragroup conflict, such as process conflict. To…

The change detection task has been used in dozens of studies with adults to measure visual working memory capacity. Two studies have recently tested children in this task, suggesting a gradual increase in capacity from 5 years to adulthood. These results contrast with findings from an infant looking paradigm suggesting that capacity reaches…

To date, research results suggest that task repetition positively affects oral task performance. However, researchers have not yet shown the extension of the benefits of repeating the same task to performance of a new task. This article first provides an overview of the currently available research findings on task repetition and then presents the…

The process of developing innovative mobile approaches to informal and formal learning is challenging, not least in needing to satisfy stakeholders with diverse interests in the technology, the pedagogy and the overall system. Some approaches to evaluation may focus on examining the nature and quality of learning that occurs, while other methods…