This research was supported by the National Science Foundation under Grant No. SES-0961700. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. We are grateful for the research assistance of Patrick Schoettmer and Jeremy Castle. Thanks also to Christ the King Lutheran Church of South Bend, Indiana, for the use of their facilities, as well as Todd Adkins and Dan Hubert for appearing in the experiment’s news stories.