At 2 weeks after pretest counseling , knowledge ( d = 0.03 ; lower bound of 97.5 % CI , -0.61 ) , perceived stress ( d = -0.12 ; upper bound of 97.5 % CI , 0.21 ) , and satisfaction ( d = -0.16 ; lower bound of 97.5 % CI , -0.70 ) had group differences and confidence intervals that did not cross their 1-point noninferiority limits .