. Author manuscript; available in PMC: 2023 Aug 1.

Published in final edited form as: Res Child Adolesc Psychopathol. 2022 Feb 1;50(8):1055–1066. doi: 10.1007/s10802-022-00902-8

Table 4.

Standardized mediation path coefficients

	Standardized Parameter Estimate (SE)	Est./SE	Sig.
Model 1: Inattentive Symptoms at Year 6
Path a: Effortful control → ADHD PRS score	−0.20 (0.06)	−3.62	p<.01
Path b: Effortful control	−0.41 (0.05)	−8.71	p<.01
Path c: ADHD PRS score total	0.16 (0.05)	3.38	p<.05
Path c’: ADHD PRS score indirect	0.084 (0.03)	3.30	p<.05
Model 2: Hyperactive Symptoms at Year 1
Path a: Surgency → Prenatal maternal smoking	0.14 (0.03)	4.10	p<.01
Path b: Surgency	0.36 (0.03)	13.5	p<.01
Path c: Prenatal maternal smoking total	0.091 (0.03)	3.19	p<.05
Path c’: Prenatal maternal smoking indirect	0.053 (0.01)	3.90	p<.001

Note. Participants were ages 7-13 years at Year 1 and 13-19 years at Year 6. Traits were measured at Year 1.