Reading comprehension is often treated as a multidimensional construct. In many reading tests, items are distributed over reading process categories to represent the subskills expected to constitute comprehension. This study explores (a) the extent to which specified subskills of reading comprehension tests are conceptually conceivable to…

The so-called control-of-variables strategy (CVS) incorporates the important scientific reasoning skills of designing controlled experiments and interpreting experimental outcomes. As CVS is a prominent component of science standards appropriate assessment instruments are required to measure these scientific reasoning skills and to evaluate the…

Helping students develop a sound understanding of scientific concepts can be a major challenge. Lately, learning progressions have received increasing attention as a means to support students in developing understanding of core scientific concepts. At the center of a learning progression is a sequence of developmental levels reflecting an…