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Evaluating Internal Structure Validity Evidence for the TIMSS (Trends in International Mathematics and Science Study) 2011 Mathematics Test

Thu, April 16, 12:00 to 1:30pm, Sheraton, Floor: Fourth Level, Chicago VI&VII


Using the Trends in International Mathematics and Science Study (TIMSS) 2011 student response data, we evaluated validity evidence based on the internal structure of the 4th-grade math test across six countries (Australia, Chile, Italy, Japan, Tunisia, and United States) using multi-group confirmatory factor analysis and the item response theory likelihood ratio test. Preliminary findings suggest that some items on the 4th-grade math test may function differentially across countries, which raises concerns about using these test scores to compare countries and make inferences about the differences in their students’ achievement.