Cognitive diagnostic models can uncover students' mastery of multiple fine-grained skill attributes or problem-solving processes. A number of studies have applied cognitive diagnostic models to detect students' knowledge mastery in mathematics and language testing. However, few studies focus on cognitive diagnostic assessment in K-12 science…

Uses data from the Third International Mathematics and Science Study (TIMSS) to determine the extent of Israeli students' ability to give scientific explanations of events in earth, life, and physical science. Finds student explanations to be generally simple, often incomplete, and often consisting only of descriptive or teleological explanations.…