December 19, 2012

Speech sound disorders in a community study of preschool children

The following manuscript has been accepted for publication
McLeod, S., Harrison, L. J., McAllister, L. & McCormack. J. (2012, in press December). Speech sound disorders in a community study of preschool children. American Journal of Speech-Language Pathology.

ABSTRACT:
Purpose. To undertake a community (non-clinical) study to describe the speech of preschool children identified by parents/teachers as having difficulties “talking and making speech sounds” and compare those who had and had not accessed the services of a speech-language pathologist (SLP).
Method. Stage 1: Parent/teacher concern regarding speech skills of 1,097 4- to 5-year-old children attending early childhood centers was documented. Stage 2a: 143 children identified with concerns were assessed. Stage 2b: Parents returned questionnaires about service access for 109 children.
Results. The majority of the 143 children (86.7%) achieved a standard score below the normal range for the percentage of consonants correct (PCC) on the Diagnostic Evaluation of Articulation and Phonology (Dodd, Crosbie, Holm, & Ozanne, 2002). Consonants produced incorrectly were consistent with the late-8 phonemes (Shriberg, 1993). Common phonological patterns were: fricative simplification (82.5%), cluster simplification (49.0%)/reduction (19.6%), gliding (41.3%), and palatal fronting (15.4%). Interdental lisps on /s/ and /z/ were produced by 39.9% of children, dentalization of other sibilants by 17.5%, and lateral lisps by 13.3%. Despite parental/teacher concern, only 41/109 children had contact with an SLP. Children who had contact with an SLP were more likely to be unintelligible to strangers, express distress about their speech, have a lower PCC and a smaller consonant inventory compared to the group who had not contacted an SLP.
Conclusions. There are a significant number of preschool-aged children with SSD who have not had contact with an SLP. These children have mild-severe SSD and would benefit from SLP intervention. Integrated SLP services within early childhood communities would enable earlier identification of SSD and access to intervention to reduce potential educational and social impacts.