I think I'm a little too late to join this debate, but I thought I'd contribute some thoughts.
In my region, we do not get states and regionals tests back. It never really occured to me to ask why, but I understand the points made above me.
Something I'd like to contribute is the idea of the tests being withheld to preserve something as simple as feelings. When I leave an event, or even a test in school, I normally have a good idea of what I knew, and what I need to work on. If I didn't do well, and I know it, getting a graded test back can be painful. I agonize over it for days, because seing a number in red ink makes everything worse.
We did have an issue last year, where a test was graded wrong. My coach knew directly from the placings that something wasn't right. That girl would not have gotten the placement she recieved, because she was third year and the best in our school. He put in an appeal, and it turns out the event superviser missed a page of her test, and forgot to give her 20 or 30 something more points. She would have won with the score she actually got.
Past: Forestry, Disease, Meteorology, Towers, Sounds, Triple E, Boomilever, Entomology, WQ, WIDI, Bridges
Total Medals: 14
State Medals: Sounds of Music (2nd, 2013), Forestry (3rd, 2013), and Triple E (4th, 2013)
Gelinas and Ward Melville Alum, ELI Volunteer