When I was a 20 something, my friends and I went out back on a nice sunny afternoon and tuned up for duck season by throwing clay pigeons and practicing our shooting. We were telling a grizzled old duck hunter about our "smart" preparation. He said "Well that's nothing like duck hunting."
"What you need to do is wake up at 4:00 AM, sit on a hard bench in a crude blind, with your boots in 2 buckets of cold water. After a couple hours of nothing happening, you pour a cup of boiling hot coffee from your thermos, and with your other hand, start eating a sandwich. At that point, your friend jumps out from behind a bush, and throws a screaming fast clay pigeon right at you. You drop the hot coffee in your lap, the sandwich in the cold water, and try to get a shot off. That, boys, is how you prepare for duck hunting."
We all just sat there and knew we had much to learn from this learned man.
That, is how you conduct a test!
Loved that story. Lotsa truth in it too.