Questions below will be based on the following: A researcher wishes to test the hypothesis that intelligence is a sex-linked characteristic. A random sample of 1000 women is selected and given IQ tests. Similarly, a random sample of 1000 men is selected and also given IQ tests. The mean IQ's of the two groups are compared and the difference is found to be significantly in favor of the females.
-This study proves that
A) a non-chance difference exists between male and female IQ's
B) being female causes one to have a higher IQ
C) being male causes one to have a lower IQ
D) none of these, since the research is strictly post-facto

Question

Quizplus · Accepted Answer

The study proves that there is a non-chance difference between male and female IQ's. However, it does not prove that being female causes one to have a higher IQ or that being male causes one to have a lower IQ. Additionally, the fact that this is a post-facto study does not preclude the possibility of drawing valid conclusions.

Questions Below Will Be Based on the Following: a Researcher