Talk Early, Talk Often to Boost Toddler Language Skills
University of Kansas researchers Betty Hart, Ph.D., and Todd R. Risley, Ph.D., toiled for years with old-fashioned tape recorders and manual transcription methods to gather the data they needed to show a correlation between the amount of language a child is exposed to before age three and increased IQ and academic success in later years. These technological constraints limited their data gathering ability to an in-house observer recording one hour of language per month from children 10 months of age or older.
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