Question

Suppose someone devises a new IQ test and we discover that tall people get higher test scores than short people do. What, if anything, should we do to determine whether or not this test is biased against short people? A. Interview short people who took the test to see if they felt the test was biased against them.B. Statistically analyze the results to see if, in fact, the two groups did get different scores.C. Look at school performances to see if the test accurately predicts performances of both short and tall people.D. Nothing else needs to be done: The mere fact that the test reports a difference between short and tall people is evidence of test bias.

Answer 1

Answer:

C. Look at school performances to see if the test accurately predicts performances of both short and tall people.

Explanation:

In this case, the best way to prove if the test is valid or not, is to contrast it with another set of data, and a good set is school performance.

If the test does predict school performance for tall and short students, then, the test can proven correct. If the experiment results otherwise, the test could be discarded, or reevaluated.