TIMSS 2023 Assessment Frameworks
Ina V.S. Mullis, Michael O. Martin, and Matthias von Davier, Editors
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The TIMSS 2023 Assessment Frameworks provides the foundation for the four international assessments that comprise IEA’s TIMSS 2023: TIMSS Mathematics—Fourth Grade, TIMSS Mathematics—Eighth Grade, TIMSS Science—Fourth Grade, and TIMSS Science—Eighth Grade.
The TIMSS 2023 Mathematics Framework and the TIMSS 2023 Science Framework
presented in Chapters 1 and 2, respectively, describe the major content and cognitive domains in mathematics and
science tested at the fourth and eighth grades. Mathematics and science content domains and topic areas within
those domains are described separately for the fourth and eighth grades. These are further elaborated with
specific topics and objectives. The cognitive domains of 
knowing, applying, and reasoning
describe the thinking skills students are expected to use when responding to the mathematics and science
assessment items. Chapter 3 contains the TIMSS 2023 Context Questionnaire Framework describing the
home, school, and classroom factors associated with students’ learning in mathematics and science that will be
investigated via the questionnaires completed by students, their parents, teachers, and school principals.
Finally, Chapter 4 provides an overview of the assessment design, including general parameters for item
development.