TY - BOOK AU - Gelman,Andrew AU - Hill,Jennifer TI - Data analysis using regression and multilevel/hierarchical models T2 - Analytical methods for social research SN - 9780521867061 AV - HA31.3 .G44 2007 PY - 2007/// CY - Cambridge PB - Cambridge University Press KW - Regression analysis KW - Multilevel models (Statistics) ER -