Sexual assault on college campuses was the public health and safety problem addressed in this study which sought to determine if intervention and prevention program type affected rates of sexual assault on Tier I and Tier II universities in Texas. Female students, educated on the dangers of being victim to the criminality of sexual assault, were unaware of the increased danger they faced on campus as women. Intervention and prevention offered a way to increase safety for students. Federal and state laws produced changes in college administrative sexual assault response requirements. This study examined the role of sexual assault prevention and intervention programs in Texas Tier I and Tier II universities using a quantitative approach and ex-post facto design to determine whether any differences existed after postsecondary institution sexual assault rates were reported. There were statistically significant differences in the mean number of sexual assaults at Tier I and Tier II universities from 2010-2014; from 2010 to 2019; from 2014 to 2016, and from 2014 to 2019. Statistically significant differences were found in the mean number of reported rapes between traditional and non-traditional interventions at Tier II universities. Additionally, results indicated that there were significant differences between reported mean rapes for Tier I and Tier II public universities. Recommendations for Texas colleges and universities are to extend federal and state mandates, provide extensive and prolonged engagement for both traditional and non-traditional interventions, and create more transparency between campus and local police in incidents of sexual assaults on campus. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]