1
Q
Positive correlation
A
One variable increases other variables increase
2
Q
Negative correlation
A
One variable increases other variables decrease
3
Q
No correlation
A
No relationship between the two variables
4
Q
Correlation evaluation
A
(+) establish strength of relationship between two variables
(+) investigate things that can’t be manipulated experimentally
(+) once correlation has been conducted predictions can be made
(-) can’t demonstrate cause and effect
(-) may not be correlation between two variables but a third unknown influences both
(-) doesn’t detect curvilinear relationships
