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This research examined early semantic and gestural development of normally developing 12-, 18-, and 24-month old Korean children. About 20-minute communication data were collected for each child using play materials from CSBS-DP by Wetherby & Prizant (2002). The use of gestures was 0.92, 2.45 and 2.21 gestures per minute for the 12-, 18-, and 24-month old children, respectively. The children used more words during the 20-minute interaction as they got older: 1.6, 16.7 and 43.6 words for the 12-, 18-, and 24-month old children, respectively. Eighteen-month olds used 2.2 word combinations while 24-month olds used 25.2 word combinations. Individual differences were observed in the frequencies of gesture, word, and word combinations. This research showed that the frequencies of gestures, words and word combinations could be valuable developmental indices for Korean communicative development.
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