Date of Conferral







Cheryl Keen


The International Baccalaureate (IB) organization promotes distributed leadership as the ideal leadership model for implementation of all of its 4 programs, and researchers have noted that this leadership model in private international schools with multiple IB programs has been vital to school wide success. The purpose of this qualitative case study was to explore how distributed leadership influenced the implementation of the International Baccalaureate Middle Years Program (IBMYP) in a public middle school that has been successful in meeting academic goals. Spillane's distributed leadership model served as the basis for identifying the organizational structures, routines, and tools that influenced the implementation of the IBMYP and improvement in students' academic achievement. Data included interviews with 2 administrators, 3 teachers, 2 support staff, and 1 coordinator, and documents collected from participants, a district leader, and the school's website. Data analysis entailed coding to identify emerging patterns and themes. Findings from this study indicated that distributed leadership had a positive influence in the implementation of the IBMYP. Major themes included effective distributed leadership practices of positional and informal leaders; collaboration amongst faculty members; positive relationships between administrators and others; shared academic vision; effective organizational structures, routines, and tools; shared learning; and students' behavioral challenges. Positive social change may come from providing leaders in the IB organization, as well as district leaders, strategies for distributing leadership that were found in this study that may increase successful implementation of the IBMYP in public schools and improvement in student academic achievement.