People who drink caffeinated beverages tend to experience increased alertness and psychomotor activity.This demonstrates a(n)
A) positive correlation.
B) negative correlation.
C) zero correlation.
D) unknown.

Question

Quizplus · Accepted Answer

A positive correlation means that two variables are related in a way that as one variable increases, the other variable also increases. In this case, the more caffeinated beverages consumed, the higher the level of alertness and psychomotor activity, indicating a positive correlation between the two variables.

People Who Drink Caffeinated Beverages Tend to Experience Increased Alertness