ABSTRACT

The purposes of this study were to evaluate PMLU (phonological mean length of utterances), PWP (proportion of whole-word proximity), and PWC (proportion of whole-word correctness) of conversational speech in children two to four years of age and to compare the result of different sample sizes. Sixty typically developing Korean children participated in this study. Participants were divided into six groups at intervals of six months of chronological age. The children' spontaneous speech was recorded in everyday interactional contexts and transcribed phonetically. A total of 50 eojeols were selected from the speech samples for analysis. The results showed that the PMLU, PWP, and PWC were significantly different for all age groups. The R score of PMLU between sample sizes was over .90 in two-year olds. The results were discussed in perspectives of speech development and language specific characteristics of the Korean language.

KEYWORD

PWP, PWC, spontaneous speech, PMLU

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