Skip to main content

Table 2 Sample size required per profession to detect a difference in proportion at α = .05

From: Tobacco brief intervention training for chiropractic, acupuncture, and massage practitioners: protocol for the CAM reach study

 

Effect size

1-β

22% (28.0% vs. 50.0%)

25.5% (28.0% vs. 53.5%)

29% (28.0% vs. 57.0%)

.75

31

23

18

.80

35

26

20

.85

41

31

24

Back to article page

BMC Complementary Medicine and Therapies

ISSN: 2662-7671

Contact us