I came across this article not so long ago. It makes for good reading.
You can find the full article here.
Some of the questions that it raised:
- Did you have a precise aiming point?
- Had you stalked every ball from a few yards back?
- Did you see your mallet hit the ball in each shot?
- Did you follow through in the direction of your target?
- Did you play a bad shot, or series of shots at some stage and then dwell on them as the game progressed?