The information processing model is a type of framework that used by cognitive psychologists. The model is a type of thinking process to how to use a computer. Just like a computer, the human mind then takes the information and then organizes it and then store it to be retrieved at a later time. Hope this helps!:)
The best answer to fill in the blank would be ''Bystander'' because as that role you can go tell any adult or higher authority to stop the fighting so you don't try to be a hero and get yourself hurt as well.