Why do Finnish students have an edge in science?

Large-scale assessments like PISA are highly influential in policymaking, but they don’t tell us anything about the nature of student learning underpinning the scores. In this study, an additional instrument was administered to students in Finland, Germany, and Switzerland. Finnish students, who score higher on PISA, also scored higher on the second assessment. Findings suggest that Finnish students may have developed more complex knowledge bases in science.