Professor Nikodemos has found a high positive correlation between the number of his psychology lectures that students attend during the semester and their grades in psychology.This means that attending more of Nikodemos's classes
A)causes better grades in psychology.
B)causes worse grades in psychology.
C)is predictive of better grades in psychology.
D)is predictive of worse grades in psychology.

Question

Quizplus · Accepted Answer

A high positive correlation between the number of psychology lectures attended and grades in psychology indicates a predictive relationship rather than a causal one. Attending more of Nikodemos's classes is therefore predictive of better grades in psychology, but it does not necessarily cause better grades in psychology.

Professor Nikodemos Has Found a High Positive Correlation Between the Number