J. Charles Alderson, Diagnosing Foreign Language Proficiency: The Interface between Learning and Assessment

This book addresses the need for tests that can diagnose the strengths and weaknesses in learners' developing foreign language proficiency. It presents the rationale for, and research surrounding, the development of DIALANG, a suite of internet-delivered diagnostic foreign language tests funded by the European Commission. The word 'diagnosis' is common in discussions in language education and applied linguistics, but very few truly diagnostic tests exist.