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Direct linkJulia Mang; Helmut Küchenhoff; Sabine Meinck – Large-scale Assessments in Education, 2024
Stratification is an important design feature of many studies using complex sampling designs and it is often used in large-scale assessment (LSA) studies, such as the "Programme for International Student Assessment" (PISA), for two main reasons. First, stratification variables that achieve a high between and low within strata variance…
Descriptors: Foreign Countries, Achievement Tests, International Assessment, Secondary School Students
