ERIC Number: EJ859449
Record Type: Journal
Publication Date: 2009-Oct
Abstractor: As Provided
Reference Count: N/A
Epidemiology of Speech and Language Impairment in a Nationally Representative Sample of 4- to 5-Year-Old Children
McLeod, Sharynne; Harrison, Linda J.
Journal of Speech, Language, and Hearing Research, v52 n5 1213-1229 Oct 2009
Purpose: To draw on multiple sources of information to determine prevalence of speech and language impairment in young Australian children. Method: Information about 4,983 children (ages 4-5 years) from Growing Up in Australia: The Longitudinal Study of Australian Children (Australian Institute of Family Studies, 2007) was obtained via parent interviews and questionnaires, teacher questionnaires, and direct assessment. Data were statistically weighted to the Australian population of 253,202 children in the target age group. Results: "Parent-reported prevalence": 25.2% had concerns about how their child talked and made speech sounds (11.8% "concerned"; 13.4% "a little concerned"), and 9.5% had concerns about how their child understood language (4.4% "concerned"; 5.1% "a little concerned"). Parents who reported concerns identified "speech not clear to others" as the most frequent area of difficulty (12.0%). "Teacher-reported prevalence": 22.3% of children were considered to be less competent than others in their expressive language ability (6.7% "much less competent"; 15.6% "less competent"); 16.9% were considered to be less competent than others in their receptive language ability (4.0% "much less competent"; 12.9% "less competent"). The match between parent and teacher identification was higher for expressive speech and language concern than for receptive language. "Direct assessment": 13.0% of children were 1-2 "SD"s below the mean on the Adapted Peabody Picture Vocabulary Test-III (S. Rothman, 2003), and a further 1.7% were greater than 2 SDs below the mean. Parent and teacher reports were significantly correlated with scores obtained via direct assessment. "Period prevalence": Parents and teachers reported that 14.5% of children had accessed speech-language pathologist (SLP) services. 2.2% indicated that they needed but could not access an SLP. Conclusion: Multiple indicators of speech and language impairment in diverse contexts confirmed the high prevalence of this condition in early childhood and a concomitant need for SLP services.
Descriptors: Foreign Countries, Young Children, Speech Impairments, Language Impairments, Epidemiology, Incidence, Performance Based Assessment, Parents, Teachers, Interviews, Questionnaires, Receptive Language, Expressive Language, Speech Language Pathology, Correlation, Longitudinal Studies
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Location: Australia
Identifiers - Assessments and Surveys: Peabody Picture Vocabulary Test