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By the age of 3, children from wealthier households hear, on average, about 500,000 encouragements and 80,000 discouragements. The ratio is reversed in households on welfare.

"The Socioeconomics of Parenting" by Jonah Lehrer, www.wired.com. January 21, 2011.
By the age of 3, children from wealthier households hear, on average, about 500,000 encouragements and 80,000 discouragements. The ratio is reversed in households on welfare.