The purpose of this quantitative study was to examine the impact of the number of college credits earned in Technical College Preparation (Tech Prep) and Dual Credit (College Now) programs as a predictor of continued success after high school, as measured by first-year college GPA at a Midwest Community College. This study looked at how the independent variables of Number of Tech Prep and Dual Credit credits earned, Gender, High School GPA, Dual Credit Disciplines, Tech Prep Career Clusters, and Socioeconomic Status (SES) Proxy Pell Grant Status impacted students' overall college success rate. The results showed the following: First, high school GPA was a significant positive predictor of students' first year college GPA for the Tech Prep group, the College Now group, and for the non-program participants. Second, females had higher first year college GPAs than males in the Tech Prep group, but this gender difference did not carry over to the College Now program participants or non-program participants. Third, the participation in Tech Prep and College Now programs, and the number of credits earned in these programs, did not significantly impact students' first year college achievement. Fourth, Pell Grant Status as a measure of Socioeconomic Status was not predictive of the students' academic achievement in their first year of college. Based on this study's findings, the following future research is recommended: First, replicate the study using degree completion, ACT, and SAT scores as predictors of college success. Second, replicate the study and only use Tech Prep students in the model. Third, replicate this study and only use students with no Tech Prep and no Dual Credit in the model, to determine if High School GPA is a significant predictor of College GPA for these students. Fourth, conduct a state-wide assessment on how each of the consortia are gathering data on Tech Prep and Dual Credit students and implement a consistent data collection program, data collection instrument, and instrument training on a state-wide basis. [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.]