DEP 4005 - Developmental Psychology Christine Ruva, Ph.D.

Developmental Landmarks in Language Development

(note: these are approximate dates)

Crying 0-? months

Other vocalizations and cooing 1-3 months

Babbling 5-6 months

*First word 10-13 months

10 word vocabulary 15 months

50 word vocabulary 19 months

*First word combinations 18-20 months

Complex sentences 2-3 1/2 years

Grammatical judgment 5 years

Quite good pronunciation 8 years

Misc. "fine tuning" of grammar through childhood