Critical Values of r


These critical values of the Pearson r are presented for training purposes. For real problems, your statistics book or stat software will provide more actual estimates. Also, these values are only for 2-tailed tests at .05 alpha.

df

.05 alpha

1

0.997

2

0.950

3

0.878

4

0.811

5

0.755

6

0.707

7

0.666

8

0.632

9

0.602

10

0.576

11

0.553

12

0.532

13

0.514

14

0.497

15

0.482

16

0.468

17

0.456

18

0.444

19

0.433

20

0.423

25

0.381

30

0.349

35

0.325

40

0.304

45

0.288

50

0.273

60

0.250

70

0.232

80

0.217

90

0.205

100

0.195