Research published by the late University of Kansas researchers Betty Hart and Todd Risley in the 90s highlighted the phenomenon in which children in professional families hear an average of 30 million more words by the time they were 4 than children of parents accepting public assistance, and 15 m
Date: Feb 04, 2014
Source: Google
Obama proposal reflects shift in views on early childhood education
By age 3, children of white-collar parents have a working vocabulary of 1,116 words, while children in working-class families know 749 words and children whose families are on welfare know 525 words, according to an oft-cited 2003 study by Betty Hart and Todd R. Risley.