Speech, Phonological Awareness and Literacy in New Zealand Children with Down Syndrome

Abstract

Children with Down syndrome (DS) are reported to experience difficulty with spoken and written language which can persist through the lifespan. However, little is known about the spoken and written language profiles of children with DS in the New Zealand social and education environment, and a thorough investigation of these profiles has yet to be conducted. The few controlled interventions to remediate language deficits in children with DS that are reported in the literature typically focus on remediation of a single language domain, with the effectiveness of interventions which integrate spoken and written language goals yet to be explored for this population. The experiments reported in this thesis aim to address these areas of need. The following questions are asked 1) What are the phonological awareness, speech, language and literacy skills of New Zealand children with DS? 2) What are the home and school literacy environments of New Zealand children with DS and how do they support written language development? and 3) What are the immediate and longer term effects of an integrated phonological awareness intervention on enhancing aspects of spoken and written language development in young children with DS? These questions will be addressed through the following chapters. The first experiment (presented in Chapter 2) was conducted in two parts. Part 1 consisted of the screening of the early developing phonological awareness, letter knowledge, and decoding skills of 77 primary school children with DS and revealed considerable variability between participants on all measures. Although some children were able to demonstrate mastery of the phoneme identity and letter knowledge skills, floor effects were also apparent. Data were analysed by age group (5 8 years and 9 14 years) which revealed increased performance with maturation, with older children