PSYC correlation

Psychology 110 online Name _______________________________

Grace Chan

Correlation Lab

Positive correlation (4.5)

variable	variable
units	units
1	6	1	6
2	7	2	7
3	8	3	8
4	9	4	9
5	10	5	10

Scatterplot for positive correlation (see lab manual p.18)

Describe the above correlation based on the scatterplot (strength and direction):

________________________________________________________________________________

Calculate the correlation coefficient of the above (use Vassarstats – see lab manual p.19)

r = ________ p (two tailed) =___________

Make a conclusion of the above correlation based on the correlation coefficient (r) and the p-value:

Negative Correlation (4.5)

variable	variable
units	units
1	6	1	6
2	7	2	7
3	8	3	8
4	9	4	9
5	10	5	10

Scatterplot for negative correlation (see lab manual p.18)

Describe the above correlation based on the scatterplot (strength and direction):

________________________________________________________________________________

Calculate the correlation coefficient of the above (use Vassarstats – see lab manual p.19)

r = ________ p (two tailed) =___________

Make a conclusion of the above correlation based on the correlation coefficient (r) and the p-value:

________________________________________________________________________________

Answer the following: (1)

If the data suggests that the correlation between depression and anxiety is about 1.25. What can you say about the strength of the relationship?

Which correlation is stronger? r = .06 or r = -.06