Hope this helps. Good luck. And one more thought: even though companies have pay ranges for each position, they're not about to disclose that directly, for obvious reasons. Instead, the person negotiating on their behalf will size you up, and pick a number from the bottom or the top of the range accordingly.

Assuming your deflection doesn't end the conversation, the fact that you can hold your ground calmly and polity, yet firmly and clearly will probably cause the rep. to opt for the high end.