It is not a mystery, Successful Examinees are Focused.
The question is what are they focusing on?
Focus is imperative to any goal you set for yourself.
What you Focus on Expands.
If you Focus on Passing you will Pass.
If you Focus on: This test is hard, the test will be hard.
If you focus on What if I Fail? You will Fail.
Focus on what you Want! Pass! Pass! Pass!