This quantitative study used archived student records to determine which high school and postsecondary factors are the most significant predictors of college retention among 2,175 students enrolled at the University of West Georgia in Fall 2018. A two-tailed t-test was conducted for research questions one and two to analyze the high school GPAs and ACT/SAT scores to determine if there was a significant difference between prior Dual Enrollment and Non-Dual Enrollment students. The results for questions one and two indicated an extremely statistically significant difference in high school GPA and ACT/SAT scores for students who participated in the Dual Enrollment program compared to non-participants. Question three used Pearson's correlation coefficient to determine the relationship between high school and college GPA between prior Dual Enrollment and Non-Dual Enrollment students. The results proved a significant, medium, positive relationship between prior Dual Enrollment student's high school GPA and college GPA. There is a 23% variability that a prior Dual Enrollment student's college GPA can be accounted for based on their high school GPA. Based on these findings, students who participate in the program will have a higher high school GPA, ACT/SAT scores, and could potentially have a higher college GPA based on their high school GPA. Further research should be conducted to determine outcomes for prior Dual Enrollment students in their postsecondary careers and post-college graduation. [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.]