This article seems to be highly linked to a study summarized by this NYT article [1] where Hart and Risley were studying how parents of different socioeconomic

This article seems to be highly linked to a study summarized by this NYT article [1] where Hart and Risley were studying how parents of different socioeconomic backgrounds talked to their babies. Every month, the researchers visited the 42 families in the study and recorded an hour of parent-child interaction. The study found that amount of variety in exposed words from real people mattered much more than just the amount of words a child was exposed to, when it relates to their development. [1]http://mobile.nytimes.com/blogs/opinionator/2013/04/10/the-power-of-talking-to-your-baby/ http://mobile.nytimes.com/blogs/opinionator/2013/04/10/the-p...