Correlation Flashcards
1
Q
Why do we use correlation?
A
To determine a relationship between variables. (Cause and effect relationship)
2
Q
What is the determination of a relationship called?
A
Regression analysis
3
Q
What is the parametric test to test correlation?
A
Pearson’s correlation
4
Q
What is the non parametric test to test correlation?
A
Spearmans Rho/ Rank
5
Q
What is the outcome of the tests called?
A
Correlation coefficient
6
Q
What does a -1 correlation coefficient mean?
A
Perfect negative correlation
7
Q
What does a +1 correlation coefficient mean?
A
Perfect positive correlation
8
Q
What does a 0 correlation coefficient mean?
A
No correlation
