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Lemery, Kathryn S.; Essex, Marilyn J.; Smider, Nancy A. – Child Development, 2002
This study examined whether item overlap, or measurement confounding, accounts for the correlation between temperament and behavior problem symptoms in children. Experts rated items on Children's Behavior Questionnaire and Preschool Behavior Questionnaire for their fit to both constructs, and then these items were factor analyzed with longitudinal…
Descriptors: Behavior Development, Behavior Problems, Children, Error of Measurement
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Cicchetti, Domenic V.; Kaufman, Alan S.; Sparrow, Sara S. – Psychology in the Schools, 2004
Our purpose in this report is to evaluate scientifically that body of literature relating the effects of prenatal and postnatal exposure to polychlorinated biphenyls (PCBs) upon neurobehavioral, health-related, and cognitive deficits in neonates, developing infants, children, and adults. The data derive from seven cohorts: six cohorts of mothers…
Descriptors: Neonates, Validity, Psychomotor Skills, Prenatal Influences