Trends in International Mathematics and Science Study (TIMSS 2023) Field Test Data Collection and Main Study Sampling, Recruitment, and Data Collection
Trends in International Mathematics and Science Study (TIMSS 2023) Main Study International Questionnaire
Appendix B TIMSS2023 Field Test Main Study Notification Letters and Supporting Materials.8-27-21
Trends in International Mathematics and Science Study (TIMSS 2023) Field Test Data Collection and Main Study Sampling, Recruitment, and Data Collection