PSYA02H3 Lecture 6: Thinking about Thinking
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PSYA02H3 Full Course Notes
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Certain traits tend to lose variability in a certain population (isolated i. e. the inuit) i. e. Certain traits tend to lose variability in a certain population (isolated i. e. the inuit) i. e. the hair colour of inuit people is almost always black therefore there is no genetic variability. Components of intelligence may be determine more or less by genetic and environment. This is shown that fraternal twins have intelligence with 0. 86 correlation and fraternal have 0. 62 correlation suggest that genetics plays some role. However, it must be noted, identical twins are more similar as people too and fraternal twins more different as people. Fraternal twins may have more of a different environment (i. e. parental interaction) and identical twins have more of the same environment. Fraternal twins raised together correlation 0. 62 and siblings raised together correlation 0. 41 fraternal twins genetic make up is like that of siblings. Environment of fraternal twins may be different than siblings shows that environment clearly has an effect.
