“…Preschool quality is a multifaceted, multilevel construct that includes a variety of program and classroom features, and a large body of literature exists in which correlates and consequences of these features have been evaluated, often separately in different studies that may focus on one or a few aspects of quality (e.g., Baydar & Brooks-Gunn, 1991;Bryant, Peisner-Feinberg, & Clifford, 1993;Bryant et al, 1994;Burchinal, Peisner-Feinberg, Bryant, & Clifford, 2000;Burchinal, Roberts, Nabors, & Bryant, 1996;Caughy, DiPietro, & Strobino, 1994;Dunn, 1993;Early et al, 2007;Gormley et al, 2005;Hagekull & Bohlin, 1995;Howes, 1997;Howes et al, 2008;NICHD ECCRN, 2002a, 2002bPeisner-Feinberg & Burchinal, 1997;Phillips, Howes, & Whitebook, 1992). As a result of the different methods of conceptualizing and measuring quality across studies, there is a mixture of evidence, particularly concerning the magnitude of associations between specific features of quality and children's development (NICHD ECCRN & Duncan, 2003).…”