Yohimbine augmentation , relative to placebo augmentation , resulted in faster improvement and better outcomes on self-report measures of social anxiety disorder severity ( Liebowitz Social Anxiety Scale , d = @ ) and depressed mood severity ( Beck Depression Inventory , d = @ ) but not on the clinician-rated measures ( Clinical Global Impressions-Severity Scale , d = @ ; Clinical Global Impressions-Improvement Scale , d = @ ) .