Trends in International Mathematics and Science Study Advanced 1995 TIMSS 1995, the largest and most ambitious international study of student achievement conducted up to that time, was the first cycle of assessments of trends in students’ mathematics and science achievement, now known as the Trends in International Mathematics and Science Study. Questionnaires gathered extensive information about the teaching and learning of mathematics and science from students, as well as from their teachers and school principals. The study also investigated the mathematics and science curricula of the participating countries by conducting an analysis of curriculum guides, textbooks, and other curricular materials. TIMSS 1995 was conducted at five grade levels: students enrolled in the two grades containing the largest proportion of 9-year-old students (third and fourth grade in most countries) students enrolled in the two grades containing the largest proportion of 13-year-old students (seventh and eighth grade in most countries) students in their final year of secondary education As an additional option, countries could test two special sub-groups of these students: students taking advanced courses in mathematics and/or students taking advanced courses in physics. For the advanced mathematics assessment, the target population consisted of students in their final year of secondary school who were taking, or had taken, courses in advanced mathematics. For physics, the target population was final-year secondary students who were taking, or had taken, courses in physics.

TIMSS

Educational measurements and tests

Target population (students) All students in their final year of secondary school (often 12th grade) who are engaged in advanced mathematics and physics studies that prepare them to enter STEM programs in higher education

STRATIFIED TWO-STAGE CLUSTER SAMPLE DESIGN