Psychometric intelligence after infantile hydrocephalus

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Abstract
Methodological issues in research concerning intellectual sequelae of infantile hydrocephalus are reviewed, and a multivariate statistical approach to this problem is proposed and exemplified. The significance of a variety of medical history variables with regard to psychometric intelligence was assessed in a sample of 5- to 8-year-old children who had been shunted in the 1st year of life. Stepwise discriminant analyses revealed that many medical history variables were neutral with regard to intellectual outcome (as assessed by performance on psychometric tests). The presence of additional medical problems in infancy, as well as current ocular defects, were the most significant variables that were associated with a high likelihood of mental retardation. Implications for further research are discussed.