It has been nearly 20 years since a landmark education study found that by age 3, children from low-income families have heard 30 million fewer words than more affluent children, putting them at an educational disadvantage before they even began school. The findings led to increased calls for publicly funded prekindergarten programs and dozens of campaigns urging parents to get chatty with their children.
Now, a growing body of research is challenging the notion that merely exposing poor children to more language is enough to overcome the deficits they face. The quality of the communication between children and their parents and caregivers, the researchers say, is of much greater importance than the number of words a child hears.