In this paper, Emeritus Professor Kevin Wheldall AM, who received the Eminent Researcher Award of this journal in 2023, describes his research over the past five decades, together with his wife and research partner Dr Robyn Wheldall. Following a biographical sketch, selected research is reviewed successively over five decades on language,…

Discriminative language markers and predictive links between early language and literacy skills were investigated retrospectively in the Jyvaskyla Longitudinal Study of Dyslexia in which children at familial risk for dyslexia have been followed from birth. Three groups were formed on the basis of 198 children's reading and spelling status. One…

Background: Empirical research suggests that social disadvantage has a negative effect on the development of language, and related cognitive skills such as reading. There is, however, no corresponding body of research on the impact of social disadvantage on motor development. The primary purpose of this study was to investigate the impact of…

A longitudinal study revealed that 14 normal and 29 specifically language impaired (SLI) four to eight year-olds developed skills in receptive and expressive language and speech articulation over the three to four years between evaluations. However, SLI subjects developed at a slower rate and the majority of them manifested reading impairment at…

The syntactic development of preschoolers (n=22) who later became disabled readers was compared to that of similar children who became normal readers. Expressive and receptive syntactic abilities were examined from age 30 to 60 months. The dyslexic group was poorer on all measures until age five, when both groups exhibited similar syntactic…

The paper describes the development of the "Test of Thought and Language" (Total) which is intended to allow first grade teachers to determine if students are ready for phonics instruction or if, for some students, the curriculum should first develop language concepts, structures and thinking processes. Background information for the…

This case study examined the effects of a parent-presented Direct Instruction decoding program on the reading and language skills of a child with high functioning Autism Spectrum Disorder. Following the 23 hour intervention, reading comprehension, listening comprehension and fluency skills improved to grade level, whilst statistically significant…