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Bolton, Patrick F.; Golding, Jean; Emond, Alan; Steer, Colin D. – Journal of the American Academy of Child & Adolescent Psychiatry, 2012
Objective: To chart the emergence of precursors and early signs of autism spectrum disorder (ASD) and autistic traits in the Avon Longitudinal Study of Parents and Children, a prospective longitudinal cohort study of the surviving offspring of 14,541 pregnant women from southwestern England with an expected delivery date between April 1991 and…
Descriptors: Autism, Screening Tests, Pregnancy, Infants
Rosenbaum, M. S.; And Others – 1981
A longitudinal study was conducted to assess (1) the validity of the Denver Prescreening Developmental Questionnaire (DPDQ) in a predominantly black, lower socioeconomic population, and (2) the effect of an educational package in increasing parental accuracy in responses to the DPDQ. Randomly selected mothers of 127 infants enrolled in a follow-up…
Descriptors: Age Differences, Audiovisual Instruction, Black Mothers, Child Development