This research examined aspects of Myers-Briggs® preferences and academic success in the first college semester. Academic aptitude as measured by precollege characteristics of ACT and class rank, academic performance during the first semester of college, and Myers-Briggs preference were analyzed for their significance within a learning community at a Midwest research university. Academic performance and Myers-Briggs preference were compared between students based upon grade point success in the first semester, fall 2004 to fall 2011. Statistical analyses were completed to determine if there is a relationship between type preference and academic success. ENFP, the preference for Extraverted Intuition with Feeling and Perceiving, was the most frequent type preference for students in the sample. ENFP was found to negatively relate to first-semester grade point for the research population and two cohorts. Identifying a trend toward specific type preferences related to academic achievement may provide support for the student population and enhance retention interventions. [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://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]