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Commentary: Unravelling the Effects of Additional Sex Chromosomes on Cognition and Communication--Reflections on Lee et al. (2012)
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Bishop, Dorothy V. M. – Journal of Child Psychology and Psychiatry, 2012
Most people have 23 pairs of chromosomes; one set from the mother and one from the father. However, nondisjunction errors during meiosis can lead to a case of trisomy, where there are three rather than two chromosomes. Although such events are not uncommon, they are usually lethal, and account for a high proportion of spontaneous abortions. There…
Descriptors: Genetics, Autism, Neonates, Intelligence Quotient
Primary Prevention in Infancy.
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Lourie, Reginald S. – Children Today, 1981
Reviews significant recent research and information related to the beginning period of human life, and specifically discusses the developing fetus and infant, and the surrounding environment in which the infant is born and reared. Suggestions for prevention of mental-health problems are offered. (Author/DB)
Descriptors: Cognitive Development, Emotional Development, Individual Development, Individual Differences
Prospective Studies of Exposure to an Environmental Contaminant: The Challenge of Hypothesis Testing in a Multivariate Correlational Context
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Jacobson, Joseph L.; Jacobson, Sandra W. – Psychology in the Schools, 2004
In this paper, we respond to the criticisms and concerns raised by D.V. Cicchetti, A.S. Kaufman, & S.S. Sparrow (this issue) in their review of the PCB literature, with particular attention to our own research in Michigan. We agree that multiple comparisons and functional significance are issues that would benefit from more discussion.…
Descriptors: Statistical Analysis, Validity, Psychomotor Skills, Risk