Copied from http://connect.ala.org/files/ABCs%20of%20Early%20Literacy.pdf
In professional families --2,153 words per hour…11 million
In working class families --1,251 words per hour …6 million
In welfare families heard an average of 616 words per hour…3 million
•By kindergarten, a child from a welfare family could have heard 32 million words fewer than a classmate from a professional family.
•By age three, cumulative vocabulary for children:
professional families 1,100 words.
working class families750 words
welfare families it was just above 500 words.
•Children in professional families heard a higher ratio of encouragements to discouragements than their working class and welfare counterparts.