Question: Research has indicated that the Blankety-Blank Aptitude Test yields a validity coefficient of about .50 when used to select applicants who will be successful in

Research has indicated that the Blankety-Blank Aptitude Test yields a validity coefficient of about .50 when used to select applicants who will be successful in algebra classes. Your school used the Blankety-Blank as a selection device by eliminating half of the lowest-scoring students. What validity coefficient would you expect if we correlated Aptitude Test scores for the highest-scoring half of students, compared to when scores are correlated for all test-takers

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