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Discussion

Consider that a newly developed test for assessing abstract reasoning and a well established test of abstract reasoning are administered to a sample of 350 and a correlation of 0.25, significant at .01 level is obtained. It will be inferred that the new test has

  • A.unsatisfactory concurrent validity
  • B.satisfactory concurrent validity
  • C.unsatisfactory predictive validity
  • D.satisfactory predictive validity

Answer: A

The new test has unsatisfactory concurrent validity. Concurrent validity is shown by the correlation of the new test with a well-established test of the same ability administered at about the same time, and a satisfactory value is expected to be high.

A correlation of 0.25, though significant at .01 with a sample of 350, is low in size, so the new test shares very little with the established one. Predictive validity concerns a later criterion, which is not involved here. So the first option is correct.

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