correlations
(in psych) refers to the statistical technique used to find the rel between 2/+ variables
DRAW a positive correlation
x
| x
| x
| x
| x
| x
_____________________
DRAW a negative correlation
x
| x
| x
| x
| x
_____________________
DRAW no correlation
x x x
| x x x
| x x
| x x x
| x x x
_____________________
correlation co-efficient
the strength and direction of a correlation are quantified using this
it ranges from -1-+1
it is statistical measure like spearman’s rho (r)
+r values
1.0 - perfect positive
0.8-0.99 - very strong positive
0.6-0.8 - strong positive
0.4-0.6 - moderate positive
0.2-0.4 - weak positive
0-0.2 - very weak positive
-r values
-1.0 - perfect negative
-0.8–0.99 - very strong negative
-0.6–0.8 - strong negative
-0.4–0.6 - moderate negative
-0.2–0.4 - weak negative
0–0.2 - very weak negative
what does +1 mean
perfect positive correlation, where an increase in 1 variable directly relates to an increase in another
what does 0 mean
no correlation, no rel between variables
what does -1 mean
perfect neg correlation, where an increase relates to a decrease in another variable