The majority of students enroll in community college with the intention of earning a college certificate, diploma, or degree that will offer them access to better employment opportunities that pay a higher living wage. However, the number of college students who place into developmental mathematics far exceeds the number of students in other areas of developmental education and creates a major barrier that prevents many students from earning their college credential. "The Impact of Faculty Credentials on Student Success in Developmental Mathematics at a Community College" is an in-depth case study that investigates the pedagogical and instructional practices of developmental mathematics instructors who possess either a mathematics (education) and/or mathematics (noneducation) credential and its impact on overall student success in developmental mathematics. This research study utilized a qualitative case study methodology to address dismal student success rates through the lens of the developmental mathematics instructor. Seven individual developmental mathematics instructors and a focus group consisting of five developmental mathematics instructors participated in the research study which allowed for the findings presented herein. Open-ended interviews, focus interviews, and document reviews were used as the basis of the triangulation process which yielded the overall findings from the qualitative research (Yin, 2014) to arrive at the responses to the research questions, along with emergent themes that were used to arrive at a model of success in developmental mathematics. Four overarching themes emerged from the findings that support the success of students in developmental mathematics and the resulting themes were coalesced into a model that supports student success in mathematics. [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.]