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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: Evolution. 2012 May 21;66(10):3238–3251. doi: 10.1111/j.1558-5646.2012.01679.x

Table 3.

Estimation of variance accounted for in each personality scale from the genetic relationship matrix based on all autosomal SNPs.

Personality Scale H2 N h2SNPs (SE) p-value h2SNPs/H2
Harm Avoidance .36 8613 .066 (.037) .04 .18
Novelty Seeking .34 8620 .099 (.036) .003 .28
Reward Dependence .30 8606 .042 (.036) .12 .14
Persistence .28 8618 .081 (.037) .01 .29

Includes SNPs genotyped for at least 95% of the sample, excludes one of each pair of individuals with an estimated genetic relatedness > .05.

H2 = heritability estimate of the trait from AE models of twin-siblings (from Keller et al. (2005)) – p <.001 for each trait.

N refers to the size of sample that h2SNPs is estimated from

h2SNPs = proportion of variance accounted for by all autosomal SNPs;

SE=standard error of estimate.

p-values denote whether the variance accounted for by SNPs is significantly different from zero.