PSYA01H3 Chapter Notes - Chapter 10: Child Development Stages, Prenatal Development, Gestational Age
Document Summary
Methods of measuring development: cross-sectional design = used to measure and compare samples of people at different ages at a given point in time, compare people of different age groups. Longitudinal design = follows the development of the same set of individuals through time: cross-sectional design has the advantage of convenience, cohort effects = consequences of being born in a particular year or narrow range of years. Prenatal to newborns: from one cell to billions: we can start to explore psychological development before birth even happens. 25% the size and weight of an adult brain. Infants can see objects up to only 12 to 15 inches away at birth, reach the normal. 20/20 between 6-12 months of age: color vision appears to take some time to develop but by 2 months infants begin discriminating different colors, by 5-months" gestation, fetus begins to have control of voluntary motor movement.
