Suppose the results of a correlational study examining the association between poverty and psychotic behavior show a correlation coefficient of r = 0.80. One erroneous interpretation of the results is that poverty causes psychotic behavior. A correct response is that ____.
A) the study was actually an experiment.
B) a third variable causes both poverty and psychotic behavior
C) poverty and psychotic behavior are unrelated
D) the correlation is actually negative

Question

Quizplus · Accepted Answer

A correlation coefficient of r = 0.80 indicates a strong positive relationship between poverty and psychotic behavior, but it does not imply causation. The correct interpretation is that there could be a third variable that influences both, hence option B is correct.

Suppose the Results of a Correlational Study Examining the Association