TABLE 3.

Interrater reliability of the ILF-EXTERNAL scales.

Scale	ICC(1,1)	95% CI	ICC(1,3)	95% CI	Pairwise percent agreement	n
ADHD symptoms	0.91	0.87−0.95	0.97	0.95−0.98	88.1	45
– Inattention	0.83	0.74−0.90	0.94	0.89−0.96	85.2	45
– Hyperactivity-Impulsivity	0.95	0.91−0.97	0.98	0.97−0.99	82.2	45
ADHD functional impairment	0.89	0.82−0.94	0.96	0.93−0.98	80.7	39
ODD/CD symptoms−short version	0.94	0.90−0.96	0.98	0.97−0.99	91.1	45
– ODD symptoms	0.94	0.90−0.96	0.98	0.96−0.99	83.7	45
– CD symptoms−short version	0.90	0.85−0.94	0.97	0.94−0.98	88.2	44
Disruptive mood dysregulation	0.90	0.85−0.94	0.97	0.94−0.98	83.7	45
Limited prosocial emotions	0.93	0.89−0.96	0.98	0.96−0.99	86.7	41
ODD/CD functional impairment	0.92	0.86−0.96	0.97	0.95−0.99	85.2	31

ADHD, attention-deficit/hyperactivity disorder; CD, conduct disorder; CI, confidence interval; ICC, intraclass correlation; ICC(1,1), one-way random-effects, absolute agreement model for single rater/measurements; ICC(1,3), one-way random-effects, absolute agreement model based on a mean-rating; ODD, oppositional defiant disorder.