PROFILE Chris Parsons Principal/Founder Word Craft About informal science Research Let's Evaluate Programs Orientation for Self-Guided School Groups on Field Trips Editors' Exchange An Exhibit's Goal is to Change Visitor Behavior. True or False? How Graduate Students Learn to Study Visitors: One Approach Front-End Evaluation: How Do You Choose the Right Questions? Field Trips and Parent Chaperones: A Study of Self-Guided School Groups at the Monterey Bay Aquarium