genetics of intelligence Flashcards
(18 cards)
Bouchard & Mcgue 1981 found IQ correlations between P + C…. and S…
p + c = 0.42, s = 0.47
what are the explanations for the correlations between family members
heredity, nurture, shared environment or a combo.
what does heritability indicate
whether there is a larger environmental or genetic influence
if h = 0.85 what does this mean
85% of the trait is due to genes.
hawforth et al 2010: MZ and DZ correlations for IQ
M: 0.76, D:0.49
how do you calculate genetic variation?
2 x (MZ - DZ) = genetic variation.
how do you calculate the non shared environment effect?
1 - MZ correlate
how do you calculate shared environment?
MZ - genetic effect
what did turkheimer et al 2003 find that the proportion of IQ varied with…
nonlinearly with SES.
what is the bell curve arguement
african amercans have lower IQ and it was said to be heritable suggesting there is ar racial component.
heritability is actually the % difference in IQ resulted from…
genetic differences
what did GWAS suggest is the likley stucture of IQ
multiple mutations.
davies et al 2018 found how many gene hits
709
h for IQ was
0.25
out of all the SNPs how many were significant
11600
how many of the significant genes were independent
434 were independent and pccured at 148 regions of chromosomes.
what is nerve conduction velocity
burst through skin and pick up arrival time- correlates well with IQ.
what is inspection time
high IQ faster at identifying the shape.
