When the relationship between two variables is "perfect,"
A)one variable causes the other.
B)the effect size is zero.
C)all of the variability is systematic variance.
D)the hypothesis is confirmed.

Question

Quizplus · Accepted Answer

When the relationship between two variables is described as "perfect," it means that all of the variability in the data can be perfectly predicted from the relationship, indicating that all of the variability is systematic variance. This does not necessarily imply causation, effect size being zero, or confirmation of a hypothesis.

When the Relationship Between Two Variables Is "Perfect