An effective diagnostic test can play a key role in language learning, allowing strengths and weaknesses in students' linguistic development to be identified and addressed. This paper describes the online Cambridge English diagnostic test, assessing English grammatical knowledge at A2 level. As most language tests focus on proficiency or…

Recent technology advancements have increased the prospects for automated spoken language technology to provide feedback on speaking performance. In this study we examined user perceptions of using an automated feedback system for preparing for the TOEFL iBT® test. Test takers and language teachers evaluated three types of machine-generated…

The two most common models for assessment involve measuring "how well" students perform on a task (the "quality model"), and "how difficult" a task students can succeed on (the "difficulty model"). By exploiting the interactive potential of computers we may be able to use a third model: measuring "how…