A stage-theory model of cognitive development.
A model of the proportions of the population at various stages of cognitive development as a function of age is proposed. It is shown that a number of weaknesses in an earlier model proposed by Eckstein & Shemesh (1992a) are avoided. The new model accounts well for empirical data for the age range 13-18 years. The uses of such models in research are discussed.
Preece
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PF
School of Education, University of Exeter, St. Luke's, UK.
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KL
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D006801:Humans; D008962:Models, Theoretical