Political Science 1020E Lecture Notes - Lecture 5: Cyril Burt, Twin Study, Karyotype
10 Apr 2020
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Psychology 1000 - week 5 : lecture notes. Traits related to action of more than 1 gene or chromosomes. Heritability h2 = variance due to genes/total variance. Length x width (panel 1 length changes, panel 2 width changes) H2 = 0 (no variability in population) Jim lewis and jim springer (shit ton of similarities) People that are smart have kids that are smart". Relatives of intelligent people were also intelligent. Reaction times, believes intelligence was unitary (mental quickness) Large scale study of twins (brought up in separate locations) Of observed variability in measured iq 72% is attributed to genetic. No environmental differences for identicals versus fraternals. Difference in growing up due to thinking people are identical or fraternal. Absolute difference scores identical - 0. 68 fraternal - 0. 81 (correct identical) - 0. 66 (wrong identical) - 0. 77. Incorrect belief of monozygosity (identical) leads to greater similarity. 50-60% due to genes, rest is due to environment (almost equal.
