Fiorello et al.(this issue) asserted that as subtest or factor-score variability increases, the
overall ability score becomes a less viable predictor of achievement—and that this is …

Improved survival in preterm infants has broadened interest in cognitive and
neuropsychological outcomes. The incidence of major disabilities (moderate/severe mental …

This paper argues for the scientific utility of the concept “intelligence”. In the first section
three common arguments against the validity of general intelligence are discussed and …

This chapter reviews the evolution of two approaches to classification for people with
intellectual deficits. Both seek to improve the lives of people with these deficits and both …

Review of published clinical and neuropsychologic outcome studies reveals limited
information about intellectual functioning after childhood stroke. The extant data are …

Despite suggestions that IQ reflects an underlying ability trait, a direct comparison of typical
and atypical populations using commonality analysis has not been undertaken. In this study …

Over the last decade, there has been an enormous increase in the number of studies
evaluating the overlap of developmental syndromes or disorders in both children and adults …

In this paper we assess the presence of assortative mating and gene–environment
interaction and the heritability of intelligence in childhood using a twin family design with …

Children with specific learning disabilities (SLDs) are characterized by a poor academic
achievement despite an average intelligence. They are therefore typically assessed not only …

Behavioral development in children shows large inter-individual variation, and is driven by
the interplay between biological, psychological, and environmental processes. However …