In order to optimally support children and adolescents with diverse educational backgrounds, identities, and life experiences in school, and to reduce educational inequalities, coordinated interventions at the classroom and school levels are necessary. "Migration and School Change" introduces insights from school (quality) research with perspectives for inclusive educational practices in a society shaped by immigration. Each volume contains theoretical foundational knowledge, research findings, as well as strategies and practical examples related to a central area of teaching and school development. The volume on performance assessment outlines questions regarding performance evaluation as a field of teaching and school development. It addresses, among other things, the interconnections between educational organization, performance assessment, and social selectivity, as well as issues related to unclear assessment practices.