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The growth in the number of educational assessments has been global, regional, and national. Written by an international team of experts in the field, Implementation of Large-Scale Education Assessments provides an extensive treatment on issues related to the inception, design, implementation, and reporting of large-scale assessments in education. The authors discuss the methods of sampling, weighting, and variance estimation that are commonly encountered in ILSAs and provide students, researchers, and teachers with the methods for implementing international studies of student achievement and obtaining high quality data.