Although International Association for the Evaluation of Educational Achievement-pioneered international large-scale assessment (ILSA) of education is now a well-established science, non-practitioners and many users often substantially misunderstand how large-scale assessments are conducted, what questions and challenges they are designed to…

This article examines key lessons learned by Russia while developing national assessment system in education. It shows that reforms are more likely to succeed backed with sustained political support, clearly defined goals or priorities, gradual introduction, and open discussion with stakeholders. [This article was translated by Lucy Gunderson.]