Purpose: Children with speech sound disorders (SSD) find polysyllables difficult; however, routine methods of sampling and measuring speech accuracy are insufficient to describe polysyllable accuracy and maturity. This study had two aims: (1) to compare two speech production tasks and, (2) to describe polysyllable errors within the Framework of Polysyllable Maturity. Method: Ninety-three preschool children with SSD from the Sound Start Study (4;0-5;5 years) completed the Polysyllable Preschool Test (POP; Baker, 2013) and the Diagnostic Evaluation of Articulation and Phonology (DEAP-Phonology; Dodd et al., 2002). Result: Consonant accuracy was similar, but vowel accuracy was significantly different between the POP and the DEAP-Phonology. Production errors were analysed according to the seven error categories of the Word-level Analysis of Polysyllables (WAP): (1) substitution of consonants or vowels (97.8% of children demonstrated common use), (2) deletion of syllables, consonants or vowels (65.6%), (3) distortion of consonants or vowels (0.0%), (4) addition of consonants or vowels (0.0%), (5) alteration of phonotactics (77.4%), (6) alteration of timing (63.4%), and (7) alteration of sequence (0.0%). The Framework of Polysyllable Maturity described five levels of maturity based on children’s errors. Conclusions: Polysyllable productions of preschool children with SSD can be analysed and categorised using the WAP, and interpreted using the Framework of Polysyllable Maturity.
March 16, 2016
The following article has been accepted for publication. It is a part of Sarah Masso's PhD:
Masso, S., McLeod, S., Baker, E., & McCormack, J. (2016, in press March). Polysyllable productions in preschool children with speech sound disorders: Error categories and the Framework of Polysyllable Maturity. International Journal of Speech-Language Pathology. Here is the abstract