TY - DATA AU - Burkhauser, Susan ; Pierson, Ashley ; Hamilton, Laura S. ; Gates, Susan M. TI - Addressing Challenges in Evaluating School Principal Improvement Efforts PY - 2012/// PB - RAND Corporation KW - EducationEDUCATION / Administration / General;EDUCATION / Teaching Methods & Materials / Arts & Humanities;EDUCATION / Educational Policy & Reform / General UR - https://www.jstor.org/stable/10.7249/j.ctt1q60md ER -