| Correlation coefficient The correlation between x
and y will be significant at the given
probability level if your calculated value of r exceeds
the tabulated r value.
Note 1: you
should ignore the sign (+ or -) of your r value when
reading this table.
Note 2: the
value of r ALWAYS lies between 0 and 1
(or 0 and -1). If your calculated r value is
more than 1 (or less than -1) then you made an error in
your calculations.
Note 3: If
you cannot find the required degrees of freedom, use the
next lowest one.
| Degrees of
Freedom |
Probability, p
|
| |
0.05 |
0.01 |
0.001 |
| 1 |
0.997 |
1.000 |
1.000 |
| 2 |
0.950 |
0.990 |
0.999 |
| 3 |
0.878 |
0.959 |
0.991 |
| 4 |
0.811 |
0.917 |
0.974 |
| 5 |
0.755 |
0.875 |
0.951 |
| 6 |
0.707 |
0.834 |
0.925 |
| 7 |
0.666 |
0.798 |
0.898 |
| 8 |
0.632 |
0.765 |
0.872 |
| 9 |
0.602 |
0.735 |
0.847 |
| 10 |
0.576 |
0.708 |
0.823 |
| 11 |
0.553 |
0.684 |
0.801 |
| 12 |
0.532 |
0.661 |
0.780 |
| 13 |
0.514 |
0.641 |
0.760 |
| 14 |
0.497 |
0.623 |
0.742 |
| 15 |
0.482 |
0.606 |
0.725 |
| 16 |
0.468 |
0.590 |
0.708 |
| 17 |
0.456 |
0.575 |
0.693 |
| 18 |
0.444 |
0.561 |
0.679 |
| 19 |
0.433 |
0.549 |
0.665 |
| 20 |
0.423 |
0.457 |
0.652 |
| 25 |
0.381 |
0.487 |
0.597 |
| 30 |
0.349 |
0.449 |
0.554 |
| 35 |
0.325 |
0.418 |
0.519 |
| 40 |
0.304 |
0.393 |
0.490 |
| 45 |
0.288 |
0.372 |
0.465 |
| 50 |
0.273 |
0.354 |
0.443 |
| 60 |
0.250 |
0.325 |
0.408 |
| 70 |
0.232 |
0.302 |
0.380 |
| 80 |
0.217 |
0.283 |
0.357 |
| 90 |
0.205 |
0.267 |
0.338 |
| 100 |
0.195 |
0.254 |
0.321 |
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Correlation coefficient?
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