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Direct linkBennett, David S.; Bendersky, Margaret; Lewis, Michael – Infancy, 2005
Differentiation models contend that the organization of facial expressivity increases during infancy. Accordingly, infants are believed to exhibit increasingly specific facial expressions in response to stimuli as a function of development. This study tested this hypothesis in a sample of 151 infants (83 boys and 68 girls) observed in 4 situations…
Descriptors: Infants, Nonverbal Communication, Child Development, Psychological Patterns
Bennett, David S.; Bendersky, Margaret; Lewis, Michael – Developmental Psychology, 2008
This study examined the effects of prenatal cocaine exposure, environmental risk, and maternal verbal intelligence on children's cognitive ability. Gender and age were examined as moderators of potential cocaine exposure effects. The Stanford-Binet IV intelligence test was administered to 231 children (91 cocaine exposed, 140 unexposed) at ages 4,…
Descriptors: Cocaine, Intelligence Tests, Intelligence Quotient, Children
