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Suter, Larry E. – International Journal for Research on Extended Education, 2019
The Program for International Student Assessment (PISA) by the OECD measures student study time during formal school periods and during periods of out-of-school-time (OST). The purpose of these items is to account for differences in country to country achievement levels. However, analyses of the impact of additional study time on student…
Descriptors: Foreign Countries, Achievement Tests, International Assessment, Secondary School Students