Health belief factors and dispositional optimism as predictors of STD and HIV preventive behavior.

Identifying factors predictive of youth's engaging in preventive behaviors related to sexually transmitted diseases (STDs) and HIV remains a prominent public health concern. The utility of the Health Belief Model (HBM) continues to be suggested in identifying preventive behaviors. This study sought to examine the full HBM, including self-efficacy, with regard to STD and HIV preventive behavioral intentions in college students.