“…This is also echoed in many of the more contemporary empirical pieces (e.g., Fairman and Mackenzie, 2015;Huang, 2016;Yow and Lotter, 2016 a) School Culture The reviewed studies revealed that certain key attributes of school culture were conducive to teacher leadership development (e.g., Beachum and Dentith, 2004;Ghamrawi, 2010;Muijs and Harris, 2006). These included a shared sense of purpose, a shared commitment to student learning, purposeful collaboration and collegiality, a desire for lifelong learning, and teacher empowerment (e.g., Cooper et al, 2016;Ghamrawi, 2010). For instance, Muijs and Harris (2006) suggested that authentic teacher leadership could only be only fostered in a supportive and collaborative school culture where the interpersonal relationships are mutually reinforcing and positive.…”