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Michel, George F.; Babik, Iryna; Sheu, Ching-Fan; Campbell, Julie M. – Developmental Psychology, 2014
Handedness for acquiring objects was assessed monthly from 6 to 14 months in 328 infants (182 males). A group based trajectory model identified 3 latent groups with different developmental trajectories: those with an identifiable right preference (38%) or left preference (14%) and those without an identifiable preference (48%) but with a…
Descriptors: Infants, Handedness, Child Development, Lateral Dominance
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Finegan, Jo-Anne K.; And Others – Developmental Psychology, 1992
Compared children's cognitive abilities at four years and their prenatal amniotic fluid testosterone levels. For girls, prenatal testosterone levels were related in a curvilinear manner to language comprehension and classification abilities, and inversely related to counting and knowledge of number facts. For boys, no relationships were found. (BC)
Descriptors: Classification, Cognitive Ability, Computation, Foreign Countries