Correlation Flashcards
1
Q
What is correlation?
A
An association between two variables.
2
Q
How does correlation differ from experiments?
A
-Variables are measured, NOT manipulated.
-Only an association is found (NO cause-and-effect).
3
Q
Correlation coefficient for each:
A
Negative (<0) Zero (=0) Positive (>0)
4
Q
What is correlation coefficient?
A
A numerical value of the strength and relationship between two variables.
5
Q
What is a curvilinear relationship?
A
A relationship where as one variable increases, the other increases up to an optimal point (then decreases).
6
Q
What is an example of a curvilinear relationship?
A
