Developmental psychologyChapter 21Atypical developmentTwo ways in which development can be atypicalDevelopment can be exceptionally advanced or exceptionally low. The extremes of individual differences in developmentDevelopment may be qualitatively different from typical developmentWilliams syndrome: a rare neurodevelopmental disorder caused by deletion of about 26 genes from the long arm of chromosome 7. Considering whether a child development isDelayed: a delayed but normal path of developmentDifferent: a qualitatively different path of developmentQuantifying delayLooking at achievements in a time frameLooking at the extent to which individual children perform relative to a level expected for their chronological age on standardized tests.The size of difference between the child’s score and the norms established for the populationTypes of delayA particular aspect of development is delayed tells the researchers little about what underlies the delay.The predominantly descriptive use of the term is relatively unhelpful, what is needed is an explanatory account of delay that identifies the various possible causes of delay in specific domains.Assessment of delay is not confined exclusively to norms for atypical development. Standardized assessment scales have been designed for use...

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An Introduction to Developmental psychology by A. Slater and G. Bremner (third edition) - a summary

An Introduction to Developmental psychology by A. Slater and G. Bremner (third edition) - a summary

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This bundle contains a summary of the book An Introduction to Developmental psychology by A. Slater and G. Bremner (third edition). The book is about development from fetus to elderly. Only the chapters needed in the course 'Developmental psychology' in the first year of psychology at the Uva are present.