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Mohammadpour, Ebrahim; Shekarchizadeh, Ahmadreza; Kalantarrashidi, Shojae Aldin – Journal of Educational Research, 2015
The authors aimed to investigate the variability in science achievement as a function of student-, school- and country-level factors. Achievement scores of 134,123 eighth-grade students from 4,511 schools of 29 countries who participated in the 2007 Trends in International Mathematics and Science Study were analyzed. Multilevel modeling results…
Descriptors: Foreign Countries, Science Achievement, International Assessment, Mathematics Tests
Mullis, Ina V. S.; Martin, Michael O.; Foy, Pierre; Arora, Alka – International Association for the Evaluation of Educational Achievement, 2012
The "TIMSS 2011 International Results in Mathematics" summarizes fourth and eighth grade student achievement in each of the 63 countries and 14 benchmarking entities which participated in TIMSS 2011. The report includes trends in mathematics achievement over time for participants in the previous TIMSS 1995, 1999, 2003, and 2007…
Descriptors: Grade 4, Grade 8, Mathematics Instruction, Mathematics Achievement