Johnson and Scott demonstrated that anxiety has a negative effect on the accuracy of EWT. The high-anxiety condition overheard a heated argument in the neighbouring room, with the sound of smashing glass and a man walking through the waiting room with a bloody paper-knife, as opposed to a greasy pen in the low-anxiety condition. When asked to identify the man, participants in the high-anxiety condition experienced 16% lower rates of accurate recall, compared to the low anxiety condition.