. 2021 Jan 13;11(1):100. doi: 10.3390/brainsci11010100

Table 3.

Pearson Correlations among Study Variables.

	1.	2.	3.	4.	5.	6.	7.	8.	9.	10.
N2 mean amplitude
2. SSRT—17 years	0.31 *
3. Concurrent inattention symptoms	0.14	0.17
4. Concurrent H/I symptoms	0.17	0.14	0.68 ***
5. Childhood inattention symptoms	0.28 *	0.23 *	0.50 ***	0.44 ***
6. Childhood H/I symptoms	0.20 ⁺	0.26 *	0.24 *	0.40 ***	0.53 ***
7. Father’s inattention symptoms	0.25 *	−0.25	0.12	0	0.14	−0.03
8. Father’s H/I symptoms	0.17	−0.03	0.01	−0.20	0.12	0.01	0.36 **
9. Mother’s inattention symptoms	0.20 ⁺	−0.18	0.17+	0.10	0.42 ***	0.10	0.37 **	0.32 *
10. Mother’s H/I symptoms	0.21 ⁺	−0.19	−0.06	0.02	0.17 ⁺	0.07	0.23*	0.10	0.38 **
11. Child’s effortful control—36 months	−0.32 *	−0.12	−0.34 **	−0.38 ***	−0.35 **	−0.33 **	0	−0.09	−0.26 *	−0.20+

⁺p < 0.10, * p < 0.05, ** p < 0.01, *** p < 0.001; SSRT = stop-signal reaction time; H/I = hyperactivity-impulsivity.