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. Author manuscript; available in PMC: 2008 Feb 6.
Published in final edited form as: Dev Sci. 2003 Nov 1;6(5):557–567. doi: 10.1111/1467-7687.00312

Table 2. Mean proportions of nouns and pronouns produced in target utterances across age groups and overlap conditions, Study 1.

3-year-olds 4-year-olds 6-year-olds
High overlap Nouns 1.02 1.26 1.46
Pronouns 2.18 2.09 2.30
Low overlap Nouns 1.79 3.13 3.67
Pronouns 0.99 0.38 0.12