Language-Gap Study Bolsters a Push for Pre-K, By Motoko Rich, October 21, 2013, New York Times: “Nearly two decades ago, a landmark study found that by age 3, the children of wealthier professionals have heard words millions more times than those of less educated parents, giving them a distinct advantage in school and suggesting the need for increased investment in prekindergarten programs. Now a follow-up study has found a language gap as early as 18 months, heightening the policy debate…”