This thesis compared two measures of phonological assessment of children, Shriberg and Kwiatkowski's 1980 Percentage of Correct Consonants (PCC) and Ingram's 2002 Proportion of Whole Word Proximity (PWP). Two typically developing two-year-old children were initially studied, and then nine children with speech sound disorders. The children's words were divided into four categories ranging from least complex to most complex. It was hypothesized that the measures would correlate with word simplicity. The hypothesis was supported for the two typically developing children, and for five of the children with speech sound disorders. The other four children with speech disorders, however, did not show the correlation. It was concluded that PCC and PWP did not measure the same thing, that PCC alone was sufficient to assess the typically developing children, and that the two measures together better captured the ability of the children with speech sound disorders than either singularly. Further, the differences between the two groups of children with speech sound disorders were interpreted as showing a difference between phonological delay and phonological disorder.
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