Closing the achievement gap among culturally and linguistically diverse students has been challenging for educators, school leaders, and policymakers. With the growing diversity of the K-12 public school student body, schools must prepare to confront this divide systematically and vigorously. Policies that promote culturally responsive teaching must be created to eliminate educational disparities between students from culturally and linguistically diverse backgrounds and their peers. This quantitative correlational research study explored the relationship between a teacher's sense of self-efficacy and implementing culturally responsive teaching practices. This study examined whether a teacher's race impacted implementing of culturally responsive teaching practices. By investigating the research through Critical Race Theory and Self-Efficacy Theory, the author attempts to better understand racism in public schools and the effects of having predominately white females teaching an ever-changing, diverse K-12 public school system. The researcher studied the data collected from middle and high school teachers from an Intermediate Unit serving a Pennsylvania county. The participants in the study were given an online survey comprised of 46 Likert-scale questions. This study's findings affirmed a strong relationship between teachers with high self-efficacy and implementing culturally responsive teaching practices. The results also supported the hypothesis that teachers of color are more likely to implement culturally responsive teaching practices than their white counterparts. These findings concurred with previous research and offer the need for further research on the relationship between teacher self-efficacy and preservice teacher preparedness programs and teacher evaluation practices. [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.]