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Suppose you want to predict job performance by a police officer (Y) from scores on the...

Suppose you want to predict job performance by a police officer (Y) from scores on the Police Skills
Inventory, a paper-and-pencil test (X1). You also have a measure of general verbal ability (X2). Is it possible
that r1Y.2 could actually be larger than r1Y? Give reasons for your answer.

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