TY - BOOK AU - Heck Ronald H AU - Thomas Scott L TI - Introduction to multilevel modeling techniques T2 - Quantitative methodology series SN - 9781841697567 (pbk) U1 - B284, P9 TB PY - 2009/// CY - New York PB - Routledge KW - Social sciences-mathematical models KW - Modeling N1 - References 252-259p.; Index 260-268p ER -