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Thompson, Bruce; And Others – Psychology in the Schools, 1978
A random sample of all sixth-grade students enrolled in a large urban school district completed the Iowa Tests of Basic Skills. The correspondence of test vectors measured by the test was analyzed. Results suggest that the ITBS does not measure exactly the same constructs across student ethnic groups. (Author)
Descriptors: Achievement Tests, Children, Comparative Analysis, Elementary Education

Thompson, Bruce; And Others – Educational and Psychological Measurement, 1978
The usefulness of the Structure of Intellect Learning Abilities Test for predicting reading and arithmetic achievement of elementary school pupils as measured by the Iowa Tests of Basic Skills was investigated using regression analyses. The Structure of Intellect test performed generally as predicted. (Author/JKS)
Descriptors: Academically Gifted, Achievement Tests, Elementary School Mathematics, Intelligence Tests