The Hart-Risley 30 Million Word Gap Study - 1995 « Language Fix - 0 views
-
Janet Hale on 09 May 12"After decades of collaborating to increase child language vocabulary, Betty Hart and Todd Risley spent 2 1/2 years intensely observing the language of 42 families throughout Kansas City. Specifically, they looked at household language use in three different settings: 1) professional families; 2) working class; 3) welfare families. "