Direct and indirect assessment of 5 ability structures underlying 7 categories of childhood psychopathology

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This research has four main aims. First, we aim to obtain detailed knowledge of how normal children develop a range of different abilities, including motor coordination, language skills, the ability to understand other people, self-control, and general cognitive ability. Second, with this knowledge of normal development we will be able to identify cases in which normal development does not occur and to identify the exact ability area(s) in which development is abnormal. Patterns of abnormal development will be studied in children with one of seven disorders, including Autistic Disorder, Intellectual Disability, and Developmental Coordination Disorder. Third, we will assess whether deficits in some ability correspond to impairments in just one basic psychological structure (e.g., language deficits are related to impairment in the ability to recognise sounds) or whether they can be due to impairments in several structures (e.g., the ability to recognise faces or the ability to maintain attention). Finally, we will investigate whether and how impairments in one or more basic psychological structures can result in deficits in one or more of the ability areas that are the basis for the diagnosis of one or more developmental disorders. This research is expected to lead to an enhanced ability to assess the exact nature of any given developmental disorder which, in turn, should enhance clinical care of the child.