A correlation tells us __________.
A) whether a cause-and-effect relationship exists
B) whether two variables are related
C) whether or not a test is efficient
D) if people are responding to demand characteristics

Question

Quizplus · Accepted Answer

A correlation is a statistical measure that indicates the extent to which two or more variables are related. It does not necessarily indicate a cause-and-effect relationship, but rather the degree to which changes in one variable may be associated with changes in another variable. The other choices do not accurately reflect what a correlation tells us.

A Correlation Tells Us __________