From the Proceedings of the 1992 Annual Visitor Studies Conference. Reviews a study, conducted as part of a formative evaluation of an HIV/AIDS exhibit developed by the New York Hall of Science, which was designed to investigate two issues: 1) What is the current state of youth awareness of the mechanisms by which condoms help prevent the spread of HIV and other sexually transmitted diseases; and 2) Which of two exhibit designs most efficiently communicates concepts related to HIV sexual transmission prevention. A copy of the survey used in the study is included in the appendix of this report.