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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: J Mem Lang. 2014 Jun 24;75:159–180. doi: 10.1016/j.jml.2014.05.005

Table 1.

Size measures of the Chicago corpus (up to and including the 50 month samples)

Corpus Word tokens Utterances Word types
Child speech 815,139 320,053 8,366
Child-directed speech 1,954,556 573,379 14,890