TY - BOOK AU - Van Blerkom, Malcolm L TI - Measurement and statistics for teachers SN - 9780415995658 SN - 200802057 U1 - 371.26 VAN PY - 2009/// CY - New York ; London PB - Routledge KW - Educational statistics KW - Educational tests and measurements N1 - Includes bibliographical references (p. 281-282) and index ER -