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Direct linkKolen, Michael J.; Wang, Tianyou; Lee, Won-Chan – International Journal of Testing, 2012
Composite scores are often formed from test scores on educational achievement test batteries to provide a single index of achievement over two or more content areas or two or more item types on that test. Composite scores are subject to measurement error, and as with scores on individual tests, the amount of error variability typically depends on…
Descriptors: Mathematics Tests, Achievement Tests, College Entrance Examinations, Error of Measurement
