PSYA02H3 Lecture 4: Lecture 4
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Unlike animals, human infants are pathetic and completely depend on their parents. We tend to have few children and high parental investment. Physical development occurs prior to birth, and it continues until long thereafter. Physical dependence sets the stage for social development we are extremely social creatures! We form social groups across lifespan this social skill has to be developed as well. Methods to study: cross- sectional vs. longitudinal approaches. Studying students in different ages and comparing with. Not same individuals if something happens in their lifetime one another (unique) confex. Sample stays the same, but you study it across time. Very difficult because it take a lot of time. Sometimes people want to stop being part of your study. Adolescence (harder to define generally you are not longer a baby) Single cell dividing and differentiating forms 200 different kind of cells blood cells, nerve cells, muscle cells, bone, etc)
