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Direct linkGlynn, Shawn M. – Journal of Research in Science Teaching, 2012
The Trends in International Mathematics and Science Study (TIMSS) is a comparative assessment of the achievement of students in many countries. In the present study, a rigorous independent evaluation was conducted of a representative sample of TIMSS science test items because item quality influences the validity of the scores used to inform…
Descriptors: Foreign Countries, Item Response Theory, Psychometrics, Science Tests
Download full textWang, Jianjun; Staver, John – 1999
Development of the test instrument in the Third International Mathematics and Science Study (TIMSS) was based on the expertise of many researchers, including "distinguished scholars from 10 countries" who participated on the TIMSS Subject Matter Advisory Committee. However, a close examination of the TIMSS Science items suggests that not…
Descriptors: Achievement Rating, Elementary Secondary Education, Foreign Countries, Item Analysis
