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Books by Donald E. Powers

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2 books found
Effects of test preparation on the validity of GRE analytical scores (GRE Board professional report)
Effects of test preparation on the validity of GRE analytic…
By: Donald E Powers
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Estimating the Effects of Various Methods of Preparing for the Sat: College Board Report 82-2
Estimating the Effects of Various Methods of Preparing for …
By: Donald E. Powers
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