Table 6.

Predictors of usefulness rating at post-test in a multivariate linear regression model (n = 342)^a

Parameter	Beta coefficient	p value
Group assignmentb	0.35	<0.0001
Average genetic self-efficacy score	0.059	0.03

^aControlling for recruitment site, education, fatalism, and gender.

^bCharla group compared to comparison group.