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The comparison of pupils' achievement with their capacity,
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Odell, Charles Watters, 1891-
Urbana, University of Illinois,
 p. 23 cm.
At head of title: University of Illinois Bulletin. vol. xxvi, no. 28...Bureau of Educational Research. College of Education.
Ability -- Testing.
Educational tests and measurements.
In copyright. Digitized with permission of the University of Illinois Board of Trustees. Contact firstname.lastname@example.org for information.
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