Which of the following would contribute the best evidence for the score validity of a new group intelligence test?
A) The correlation between Form A and Form B of the test
B) The correlation between test scores and grades in reading
C) The correlation between test scores and scores from the Stanford-Binet intelligence test
D) An examination of the homogeneity of scores on the test

Question

Quizplus · Accepted Answer

The correlation between test scores on the new group intelligence test and scores from an established intelligence test (such as the Stanford-Binet) provides the best evidence for score validity. This is because it reflects the degree to which the new test is measuring the same construct as the established test. Correlations between different forms of the new test (A and B) or correlations between test scores and grades in reading are important but are not a direct measure of score validity. An examination of the homogeneity of scores on the test, such as looking at the distribution of scores, can provide additional evidence for score validity but is not as direct as a correlation with an established test.

Which of the Following Would Contribute the Best Evidence for the Score