TY - JOUR A1 - Enders, C.K. A1 - Tofighi, D. T1 - Centering predictor variables in cross-sectional multilevel models: A new look at an old issue Y1 - 2007 DO - 10.1037/1082-989X.12.2.121 JF - Psychological Methods VL - 12 IS - 2 ER -