The median difference in the change scores pre - and post-training of the modified RBANS total score was 8.0 ( 95 % confidence interval [ CI ] : 0.0-16 .0 , P = 0.042 ) higher in the intervention arm than waitlist control , while the mean difference was 9.0 ( 95 % CI : 1.7-16 .2 , P = 0.017 ) .