Boruch, RobertMerlino, F. JosephBowdon, JillBaker, JohnChao, JessicaPark, Ji EunFrisone, MichaelYe, TianpengPorter, Andrew CHooks, Tom2023-05-222023-05-222016-01-012016-05-03https://repository.upenn.edu/handle/20.500.14332/35152Policy and AdministrationCurriculum and InstructionEducationEducational Administration and SupervisionEducational MethodsEducation PolicyTeacher Education and Professional DevelopmentIn Search of Terra Firma: Administrative Records on Teachers’ Positional Instability across Subjects, Grades, and Schools and the Implications for Deploying Randomized Controlled TrialsWorking Paper