“…Research indicates that principals can indeed have a positive if indirect effect on student achievement (Hallinger & Heck, 1998;Marzano, Waters, & McNulty, 2005;Witziers, Bosker, & Kruger, 2003), and these effects are mediated through the principal's ability to shape relationships among school staff and the attitudes, beliefs and behaviors of teachers (Anderson, 2004;Basom & Frase, 2004;Blase & Blase, 1999;Short, 1994;Davis & Wilson, 2000;Keedy & Simpson, 2001;Spillane & Thompson, 1997). By fostering relationships of caring, trust, collaboration, experimentation, inquiry and risk-taking, schools can potentially become centers of inquiry, rather than targets of change, and have far greater capacity for increasing student achievement (Sirotnik, 1989).…”