“…In the last decades research has concentrated on compensatory
efforts, demonstrating substantial developmental gains, specifically for
disadvantaged children in high-quality daycare arrangements (e.g., Magnuson, Ruhm, & Waldfogel, 2007 ; for
reviews see Burger, 2010 ; Jalongo & Sobolak, 2011) or for
high-quality child-caregiver interactions (Vernon-Feagans, Bratsch-Hines, & The
Family Life Project Investigators, 2013), while emphasizing the cumulative negative
effects of social disadvantages (Ebert et al,
2013). We thus know that the increase in school success reported for
high-quality care environments is mediated at least in part by the high-quality
language input provided specifically for children at risk due to social
disadvantages (Burger, 2010 ; Fram, Kim, & Sinha, 2012 ; Magnuson et al, 2009 ; Murray, Fees, Crowe, Murphy, & Henriksen, 2006 ; Pinto et al, 2013). Less well-investigated is
the question whether differences in early care arrangements can be associated with
differences in vocabulary acquisition in the absence of educational family
disadvantages.…”