Couldn't agree with you more RexBanner
I know I definitely wouldn't of passed the interview section of the BA assessment if I didn't have samples of the "give me an example of when questions" that they ask. That allowed me to prepare lots of examples in advance that I could tailor to answer the exact questions they asked in the manner they require. I still found it difficult with my advanced preparation
As for the practice compass type tests I was ok at them, but to say practicing didn't improve my performance on the day would be complete non-sense