>>I'm not certain how you evaluate what a visitor has learned from an >>exhibit----do you conduct a pre-test and post-test? A highly statistically suspect sampling technique, but one that may be valuable... ask your docents who are greeters, etc., to ask some folks, "What's the most interesting thing you've learned/seen today?" While it's not quantitative, consistent mentions of some exhibit or program merit a closer look. Kay Lancaster [log in to unmask]