Previous research in cognitive diagnostic assessment (CDA) of L2 reading ability has been frequently conducted using large-scale English proficiency exams (e.g., TOEFL, MELAB). Using CDA, it is possible to analyze individual learners' strengths and weaknesses in multiple attributes (i.e., knowledge, skill, strategy) measured at the item level.…

Tests the hypothesis that there is no monotonic relationship between increasing competence in different linguistic domains and growth in second-language proficiency. The article concludes with an introduction to some assessment models that can accommodate discontinuous growth patterns. These models can describe and model a student's qualitative…

A conceptualization of test theory is discussed that addresses issues of weight and coverage of evidence for statements framed in recent educational/psychological paradigms. Implications for language assessment built around the American Council on the Teaching of Foreign Languages' guidelines are considered. (26 references) (Author/CK)