Automatic Speech Scoring (ASS) has increasingly become a useful tool in oral proficiency testing for Second Language (L2) learners. However, limited studies investigate the alignment of ASS indices with the Complexity, Accuracy, and Fluency (CAF)--the three dimensions in evaluating L2 speakers' oral proficiency, and the subsequent impact indices…

This study explored two assessment approaches to oral performances: analytical complexity, accuracy, and fluency (CAF) indices and human raters' evaluations. CAF indices are frequently used in second-language speaking (L2) research; however, because tasks are communicative and goal-oriented, the degree to which students achieve such communicative…

This study attempts to investigate how four groups of participants at Tra Vinh University perceive oral fluency. This study is conducted in the hope to obtain more perceptions of oral fluency so future rubrics can be developed based on such perceptions. The study used a set of items stating what oral fluency should be like, which was developed…