George S. Ledyard
I do not think this is true at all. It's not at all difficult to know when things are martially ineffective. .
My bad - I read 'effectiveness'
in the OP and not 'ineffectiveness'
You are absolutely right, there are many ways to measure and gauge ineffectiveness in the dojo environment. However, even if all obvious ineffectiveness is eliminated, that does not guarantee effectiveness - you would still need to test in a real encounter to ascertain your effectiveness. But, the outcome will only be true for that particular test.