Suppose psychologists find that redheaded people get a lower mean score on some IQ test than do other people. What can we conclude about the possible bias of this test, or what additional information would we need before drawing a conclusion?

A) We can conclude that the test is biased against redheads.
B) We can conclude that the test is not biased against redheads.
C) We cannot draw any conclusion yet. To determine whether the test is biased, we need to determine whether redheaded people do better in school than their test scores predict.
D) We cannot draw any conclusion yet. To determine whether the test is biased, we need to determine whether redheaded people think the test is unfair.

Question

Trace Engbrecht · Accepted Answer

Final Answer : C, Explanation :  The fact that redheaded people get a lower mean score on the IQ test does not necessarily mean that the test is biased against them. There could be various other factors affecting their performance on the test, such as socio-economic status, education level, or cultural background. To determine whether the test is biased, we need to test whether redheaded people do better or worse than their test scores predict based on these other factors.

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