The heterogeneity among children with learning disabilities still represents a barrier and a challenge in their conceptualization. Although a dimensional approach has been gaining support, the categorical approach is still the most adopted, as in the recent fifth edition of the "Diagnostic and Statistical Manual of Mental Disorders." The…

Word and pseudoword reading are related abilities fundamental to reading development in alphabetic orthographies. They are respectively assumed to index children's orthographic representations of words, which are in turn acquired through the underlying "self-teaching mechanism" of alphabetic pseudoword decoding. Little is known about…

Do children who go on to develop dyslexia show normal verbal and nonverbal development before reading onset? According to the aptitude-achievement discrepancy model, dyslexia is defined as a discrepancy between intelligence and reading achievement. One of the underlying assumptions is that the general cognitive development of children who fail to…

In the first year of a study of 74 Chilean children (ages 6-11) with learning problems, half participated in a multifaceted neurocognitive treatment and half in a treatment that provided supervision of school tasks and peer group support. All participated in the neurocognitive treatment the second year. Both treatments resulted in gains.…

Factor analysis of the Swedish version of the Wechsler Adult Intelligence Scale-Revised on 88 adults with dyslexia showed a three-factor structure: a verbal comprehension (VC) factor, a perceptual organization (PO) factor, and a freedom from distractibility (FD) factor. The PO factor had the highest scores and the FD the lowest. (Contains…

Development of reading speed in Italian children with dyslexia was estimated using individualized growth curves for 38 children with dyslexia tested longitudinally from 2nd-8th grade and compared with controls. Their reading speed development followed a linear trend of .3 syllables per second per grade, half the increment observed in controls.…