Correlations Flashcards
1
Q
what is a correlation
A
- researcher investigates an association between two variables
2
Q
what is a positive correlation
A
- as one co-variable increases so does the other
3
Q
what is a negative correlation
A
as one co-variable decreases so does the other
4
Q
what is a zero correlation
A
no relationship between the co-variables
5
Q
what are the strengths of correlations
A
- precise and quantifiable measure of how two variables are related
- starting points for later research and studies
- quick and economical to carry out
6
Q
what are the limitations of correlations
A
- cannot tell us why variables are related
- cannot establish cause and effect
- an untested variable could be causing the effect
