Tab. 3.

Effects of neuropsychological functions on EL symptoms, controlling for age, gender, and IQ (A) and for age, gender, IQ, and ADHD symptoms score (B)

		A			B
	N	SRC (SE)	t	p	SRC (SE)	t	p
MRT1	512	0.36 (0.06)	6.50	***	0.01 (0.04)	0.20	ns
RTV1	512	0.30 (0.05)	6.47	***	−0.05 (0.03)	−1.37	ns
Omission errors2	813	0.28 (0.03)	8.47	***	0.00 (0.02)	0.10	ns
Commission errors2	813	0.19 (0.05)	3.63	***	−0.05 (0.04)	−1.41	ns
Digit span backwards	854	−0.15 (0.06)	−2.35	*	0.04 (0.04)	0.97	ns
Choice impulsivity3	886	0.11 (0.04)	2.40	*	0.00 (0.03)	−0.14	ns
Immediate drive for impulsive reward4	879	0.15 (0.05)	3.03	**	0.00 (0.03)	0.15	ns
Delay aversion5	867	0.03 (0.04)	0.66	ns	0.00 (0.03)	0.13	ns
MRT (event rate effect; ms)6	813	−0.14 (0.03)	−4.27	***	0.00 (0.02)	−0.06	ns
RTV (event rate effect; ms)6	813	−0.15 (0.03)	−4.26	***	−0.01 (0.02)	−0.35	ns
MRT (incentive effect; ms)7	526	−0.12 (0.04)	−2.80	**	−0.02 (0.03)	−0.60	ns
RTV (incentive effect; ms)7	526	−0.15 (0.05)	−3.14	**	−0.01 (0.03)	−0.20	ns
MRT (event rate + incentive effect; ms)8	614	−0.17 (0.04)	−4.32	***	0.04 (0.03)	1.43	ns
RTV (event rate + incentive effect; ms)8	614	−0.13 (0.04)	−3.46	***	0.07 (0.02)	2.68	**

Abbreviations: EL, emotional lability; MRT, mean reaction time; RTV, reaction time variability

¹Mean score (Go/No-go task, slow condition & Fast task, baseline condition);

²Mean score of error percentage in the Go/no-go task, slow condition & fast condition;

³Percentage of impulsive choices (MIDA task, no-postdelay condition)

⁴Percentage of impulsive choices (MIDA task, postdelay condition)

⁵Difference of percentages of impulsive choices in no-postdelay condition vs. postdelay condition (MIDA task)

⁶Go/No-go task; slow-fast condition difference

⁷Go/No-go task; slow-incentive condition difference

⁸Fast task; incentive/fast-baseline condition difference

^*p ≤ 0.05,

^**p ≤ 0.01,

^***p≤0.001

The covariates age, gender and IQ explained 5.4% of EL variance (estimated from a subsample of uncorrelated observations, i. e. no sibling pairs)