When I write my reports, I like to use pictures. These are easily available through our cell phones. A picture tells a thousand words. The pictures can show what type of quality of information the person was able to pay attention to copy. I record how often the person refers to the sample as this tells me how long they can hold a mental picture. I also record how long the person was able to pay attention to the task. This allows me to establish a pattern of performance on their sustained attention.