When we use heterogeneous subsamples of data, such as older and younger subjects, the resulting correlation between intelligence and education could
A) tell you more about the relationship between Age and Education than between Intelligence and Education.
B) be very misleading.
C) represent the relationship between Education and Intelligence accurately.
D) all of the above

Question

Quizplus · Accepted Answer

Using heterogeneous subsamples, like older and younger subjects, can lead to misleading correlations between intelligence and education because the relationship may be confounded by age differences, not accurately reflecting the direct relationship between intelligence and education.

When We Use Heterogeneous Subsamples of Data, Such as Older