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Demetriou, Andreas; Spanoudis, George; Shayer, Michael; Mouyi, Antigoni; Kazi, Smaragda; Platsidou, Maria – Intelligence, 2013
This article presents three studies, two of them longitudinal, which investigated the relations between age, processing speed, working memory (WM), and fluid intelligence ("g[subscript f]") from 4 to 16 years of age. Structural equation modeling showed that speed was a powerful covariate of age ([approximately] - 0.6 to - 0.7) from 4 to 13 years,…
Descriptors: Short Term Memory, Age, Intelligence, Structural Equation Models
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Kazi, Smaragda; Demetriou, Andreas; Spanoudis, George; Zhang, Xiang Kui; Wang, Yuan – Intelligence, 2012
This study investigated intellectual development in 4-7 years old Greek and Chinese children. They were examined on speeded performance, working memory, reasoning, and self-awareness tasks in order to investigate possible effects of learning the Chinese logographic system on possible differences in intellectual development between these ethnic…
Descriptors: Ethnic Groups, Romanization, Chinese, Intellectual Development
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Demetriou, Andreas; Mouyi, Antigoni; Spanoudis, George – Intelligence, 2008
This study investigated the structure and development of processes involved in "g." One hundred and forty children, about equally drawn among primary school grades 1-6 were examined by four types of Stroop-like speeded tasks addressed to processes of increasing complexity (i.e., speed of processing, perceptual discrimination, perceptual control,…
Descriptors: Children, Elementary School Students, Cognitive Processes, Short Term Memory