Design of a randomized controlled trial for multiple cancer risk behaviors among Spanish-speaking Mexican-origin smokers

Table 1 Minimal detectable difference with constant effect

ICC	VIF	ESS	Detectable difference
0.0	1.0	480	0.181
0.1	1.2	400	0.198
0.3	1.6	300	0.229
0.5	2.0	240	0.256
1.0	3.0	160	0.314

Note: ICC = intraclass correlation coefficient; VIF = Variance Inflation Factor; ESS = Estimated Sample Size.

ISSN: 1471-2458