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USA: Class-based disparities in cognitive, emotional, and social capabilities emerge at very early ages ...

USA: „Class-based disparities in cognitive, emotional, and social capabilities emerge at very early ages and remain stable over the life course, which implies that, whatever the causal factors, those factors operate most strongly in the preschool years.“

Univ.-Prof. Dr. Robert Putnam, „Our Kids: The American Dream in Crisis“ (2015), S. 117