Book excerpt: The researcher focused on the principal behavior dimensions that principals exhibited in interactions with staff members and the relationship those behaviors had on teachers’ sense of self-efficacy in rural schools. In this study, the researcher surveyed 96 rural elementary school teachers in a southeastern state to examine the relationship between the principal behavior dimensions using the Organizational Climate Description Questionnaire-Revised for Elementary Schools and teachers’ sense of self-efficacy using the Teacher Sense of Efficacy Scale. The researcher used a Pearson r to analyze the results of three research questions related to the relationship between the supportive principal behavior dimensions and teachers’ sense of self-efficacy in student engagement, use of instructional strategies, and classroom management. The researcher identified that the supportive principal behavior dimensions indicated a significant relationship with teachers’ sense of self-efficacy in student engagement, use of instructional strategies, and classroom management.