Predictive measures of speech proficiency in cerebral palsied speakers

The present study attempted to investigate the relationship between judged speech proficiency of cerebral palsied speakers and the following quantitative speech parameters: 1) the number of articulatory errors; 2) the intelligibility of the speech of the cerebral palsied; 3) mean vocal fundamental frequency; 4) variation of vocal fundamental frequency; 5) mean speech-sound pressure level; 6) variation of speech-sound pressure level; 7) word-per-minute speech rate. Secondarily, the study investigated the differences in the speech of the spastic and athetoid populations in terms of the parameters listed above.