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A Differential–Developmental Model (DDM): Mental Speed, Attention Lapses, and General Intelligence (g)

Department of Psychology, University of Texas at San Antonio, San Antonio, TX 78249, USA
Academic Editors: Andreas Demetriou and George Spanoudis
Received: 23 December 2016 / Revised: 23 May 2017 / Accepted: 6 June 2017 / Published: 12 June 2017
(This article belongs to the Special Issue Cognitive Development and Intelligence)
The aim of this paper is to provide a parsimonious account of developmental and individual differences in intelligence (measured as g). The paper proposes a Differential–Developmental Model (DDM), which focuses on factors common to intelligence and cognitive development (e.g., mental speed and attention lapses). It also proposes a complementary method based on Jensen’s box, a chronometric device. The device systematically varies task complexity, and separates two components of mental speed that differentially predict intelligence and cognitive development (reaction time and movement time). The paper reviews key assumptions of DDM, preliminary findings relevant to DDM, and future research on DDM. View Full-Text
Keywords: cognitive development; differential–developmental model (DDM); Jensen’s box; intelligence; mental speed; attention lapses; reaction time; movement time cognitive development; differential–developmental model (DDM); Jensen’s box; intelligence; mental speed; attention lapses; reaction time; movement time
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Coyle, T. A Differential–Developmental Model (DDM): Mental Speed, Attention Lapses, and General Intelligence (g). J. Intell. 2017, 5, 25.

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