GIOFRE' , David

The estimation of the prospective statistical power (PSP) is mandatory when using a classical Neyman-Pearson statistical method that together with the one by Fisher, represents one of the pillars of the so-called frequentist statistical approach. it seems very clear that the use and hence the importance of PSP continue to be neglected in most...

Children with specific learning disabilities (SLDs) are characterized by a poor academic achievement despite an average intelligence. They are therefore typically assessed not only with achievement tests, but also with intelligence tests, usually the Wechsler Intelligence Scale for Children (WISC). The assumption of a discrepancy between IQ and...

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Some children may be intellectually gifted, and yet experience behavioral and academic difficulties. We examined 82 twice exceptional children (2e-ADHD), having an excellent General Ability Index (GAI) derived from the Wechsler Intelligence Scale for Children-IV (GAI >= 125), and a diagnosis of Attention Deficit and Hyperactivity Disorder...

The WISC-IV was used to compare the intellectual profile of two groups of children, one with specific learning disorders (SLD), the other with intellectual disabilities (ID), with a view to identifying which of the four main factor indexes and two additional indexes can distinguish between the groups. We collected information on WISC-IV scores...

Generational intelligence test score gains over large parts of the 20th century have been observed to be negatively associated with psychometric g. Recent reports about changes in the cross-temporal IQ trajectory suggest that ability differentiation may be responsible for both changes in g as well as increasingly (sub-)domain-specific and...

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This study examined performance in the forward and backward digit span task of the Wechsler Intelligence Scale for Children–Fourth Edition (WISC–IV) in a large group of children with specific learning disorder (SLD) as compared with a group of typically developing children matched for age and sex. Our results further support the hypoth- esis...