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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: J Abnorm Child Psychol. 2018 Aug;46(6):1217–1228. doi: 10.1007/s10802-017-0361-y

Table 5.

Multivariate Estimates of Genetic and Environmental Variance (and 95% Confidence Intervals) from the Longitudinal Bivariate Common Pathway Reduced Model

Age 2 Variance Components
a2 c2 e2
Latent EXT Phenotype .92
(.86–.97)		 – .08
(.03–.14)
Common Variance
Specific Variance
Total Variance
Loading on EXT Phenotype a2 c2 e2 a2 c2 e2 a2 c2 e2
CU .69
(.63–.75)		 .45
(.37–.52)		 – .04
(.01–.07)		 .27
(.18–35)		 – .25
(.19–.32)		 .72
(.55–.87)		 – .29
(.20–.39)
ADHD .77
(.72–.82)		 .55
(.47–.63)		 – .05
(.02–.08)		 .18
(.11–26)		 – .22
(.16–.29)		 .73
(.58–.89)		 – .27
(.18–37)
ODD .78
(.73–.82)		 .56
(.48–.64)		 – .05
(.02–.08)		 .16
(.09–.24)		 – .23
(.17–.30)		 .72
(.57–.88)		 – .28
(.19–38)
Age 3 Variance Components
a2 c2 e2
Latent EXT Phenotype .83
(.75–.89)		 – .17
(.11–.25)
Common Variance
Specific Variance
Total Variance
Loading on EXT Phenotype a2 c2 e2 a2 c2 e2 a2 c2 e2
CU .71
(.65–.76)		 .41
(.34–.49)		 – .09
(.06–.13)		 .21
(.13–30)		 – .28
(.22–.37)		 .62
(.47–.79)		 – .37
(.28–.50)
ADHD .78
(.72–.82)		 .50
(.41–.58)		 – .10
(.07–.15)		 .26
(.18–35)		 – .14
(.09–.20)		 .76
(.59–.93)		 – .24
(.16–35)
ODD .78
(.73–.83)		 .51
(.42–.59)		 – .11
(.07–.16)		 .19
(.11–27)		 – .20
(.14–.27)		 .70
(.53–.86)		 – .31
(.21–.43)

Note. a2 = genetic variance, c2 = shared environmental variance, e2 = nonshared environmental variance