TIMSS 1999 International Database: Grade 8 - Trends in International Mathematics and Science Study

TIMSS 1999, also known as TIMSS-Repeat, was the second administration of IEA’s Third International Mathematics and Science Study. The assessment was designed to provide trends in eighth grade mathematics and science achievement in an international context. The 1999 assessment measured the mathematics and science achievement of eighth-grade students (ages 13 and 14 years) and collected extensive information from students, teachers, and school principals about mathematics and science curricula,