CORRELATION
CORRELATION
- The test used in measuring the degree of relationship between two variables.
DEGREES ofCORRELATION
DEGREES OF CORRELATION
1. Perfect correlation (positive or negative)
2. Some degree of correlation (positive or negative)
3. No correlation
CORRELATIONin DIAGRAM FORM
PERFECT POSITIVE CORRELATION
SOME POSITIVE CORRELATION
NO CORRELATION
SOME NEGATIVE CORRELATION
PERFECT NEGATIVE CORRELATION
CORRELATION INTERPRETATION GUIDE
± 1.00± 0.75 - ± 0.99± 0.50 - ± 0.74± 0.25 - ± 0.49± 0.01 - ± 0.24
0.00
Perfect correlationVery high correlation
High correlationModerately small correlation
Very small correlationNo correlation
CORRELATION INTERPRETATION
CORRELATIONBetweenINTERVALVARIABLES
PEARSON r
*
85908779758088858680
80898486798690908786
123456789
10
STUDENTGRADE IN MATH GRADE IN
SCIENCE
85908779758088858680
80898486798690908786
7 2258 1007 5696 2415 6256 4007 7447 2257 3966 400
6 4007 9217 0567 3966 2417 3968 1008 1007 5697 396
6 8008 0107 3086 7945 9256 8807 9207 6507 4826 880
x2y xyx y2
835 857 69 925 73 575 71 649*
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