Article

The development of children at familial risk for dyslexia: Birth to early school age

Annals of Dyslexia (Impact Factor: 1.48). 12/2004; 54(2):184-220. DOI: 10.1007/s11881-004-0010-3

ABSTRACT Children at risk for familial dyslexia (n=107) and their controls (n=93) have been followed from birth to school entry in the Jyväskylä Longitudinal study of Dyslexia (JLD) on developmental
factors linked to reading and dyslexia. At the point of school entry, the majority of the at-risk children displayed decoding
ability that fell at least 1 SD below the mean of the control group. Measures of speech processing were the earliest indices
to show both group differences in infancy and also significant predictive associations with reading acquisition. A number
of measures of language, including phonological and morphological skill collected repeatedly from age three, revealed group
differences and predictive correlations. Both the group differences and the predictive associations to later language and
reading ability strengthened as a function of increasing age. The predictions, however, tend to be stronger and the spectrum
of significant correlations wider in the at-risk group. These results are crucial to early identification and intervention
of dyslexia in at-risk children.

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