Rolf V. Olsen and Sigrid Blömeke Large-scale international assessments studies (ILSA) are regarded as important sources for monitoring educational quality in many countries. The results from the studies are frequently cited in policy documents and they are regularly used as...
Rolf Strietholt, Olesya Gladushyna & Andrés Strello The education community across the globe is anticipating the release of the latest PISA rankings. These gauge the progress being made by 15-year-olds in reading, science and mathematics across a wide selection of...
Rolf Vegar Olsen & Sigrid Blömeke Most of the international large-scale assessments are repeated in regular intervals. PISA is conducted every three-years, TIMSS every fourth year, and PIRLS is conducted with five-year intervals. Accordingly, this allows for comparisons within countries...
