I'd disagree a little on this one. I think that as a candidate you could make good use of the anchoring technique. If you establish a number that's friendly to you and then negotiate from there you're likely to end up in that ball park. If they throw out a number that's way below where you wanted to be it's hard to negotiate up much more (although perhaps, that's a good signal that this position is not up to your salary requirements).

Most candidates who make it to the interview stage are qualified for the job, but the winning candidate must be more than that.

Only one candidate will come out of the job interview a winner, and it's not necessarily the most experienced one.