This article explores knowledge, attitudes, and behaviors regarding HIV/AIDS for persons aged 50-64 by using data from the 1996 Behavioral Risk Factor Surveillance System. It examines what percentage have been tested for HIV, where and why they have been tested, knowledge about condom effectiveness, and self-perceived risk. The purpose is twofold: First, it presents an epidemiologic analysis of HIV/AIDS-related attitudes and behaviors of adults aged 50-64; second, it explores whether theoretical models used on other groups fit well with this age group. The authors conclude that the conceptual model is less robust for this group and there is a substantial need for health promotion efforts directed at older adults.