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…

A taxonomy of potential values conflicts in evaluations is presented. Basis is the distinction of types of conflict (aims vs. means conflicts; qualitative vs. quantitative conflicts). Six areas of values are discussed: the ethical, methodical, social and interactive, legal, economic, and personal values. The taxonomy of conflicts between these…