Page 12 - Štremfel, Urška, ed., 2016. Student (Under)achievement: Perspectives, Approaches, Challenges. Ljubljana: Pedagoški inštitut. Digital Library, Documenta 11.

PISA Programme for International Student Assessment
SES socioeconomic status
Council Council of the European Union
TIMSS Trends in International Mathematics and Science Study
TWG Thematic Working Group
United Nations Educational, Scientific and Cultural
UNESCO Organisation
the common UOE (UNESCO-OECD-EUROSTAT) questionnaire
UOE Lifelong Learning
LLL United States of America
USA

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student (under)achievement: perspectives, approaches, challenges