1) The document is a research proposal by Brandy Porterfield on the topic of post-traumatic stress disorder (PTSD).
2) Porterfield became interested in PTSD because of how it dramatically affects soldiers during and after war, causing reliving of trauma through nightmares and flashbacks.
3) Her primary research questions are whether PTSD is a legitimate illness, which treatments are most effective, and how veterans with PTSD affect their community.