SUMMARY OF INTERNATIONAL STUDY GUIDELINES AND DEFINITION OF ELIGIBLE STUDENTS
Twenty-three nations participated in the study. Twenty-one participated in the general assessments, while two other nations (Greece and Latvia) only participated in one or both of the advanced assessments.
To identify comparable groups across countries for the three assessments,
TIMSS countries were asked to identify eligible students in terms
of common definitions, after adapting the definitions to country-specific
situations. Students in the mathematics and science general knowledge
assessments were to be in their final year of secondary school.
For the advanced mathematics assessment, eligible students were
those who had taken or were taking advanced courses in mathematics.
For the physics assessment, students were those who had taken
or were taking physics.
The international guidelines specified the following sampling standards:
Most of the TIMSS countries experienced some deviation from international guidelines for execution of the study, at the end of secondary school, in one or more of the assessments. All deviations from these guidelines are bolded in the tables in Appendix 1.
A1.1: Nations' Definitions Of Eligible Students And Whether Met Sampling Standards: Mathematics And Science General Knowledge Assessments
A1.2: Nations' Definitions Of Eligible Students And Whether Met Sampling Standards: Advanced Mathematics Assessment
A1.3: Nations' Definitions Of Eligible Students And Whether Met Sampling Standards: Physics Assessment
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