Table 3.

Mixed effects estimate^a of association between performance tests and ADHD-RS-IV scores (n = 212)^b

Performance test	ADHD-RS-IV	ADHD-RS-IV	ADHD-RS-IV
	Total score β coefficient (p value)	Hyperactive/impulsive score β coefficient (p value)	Inattention score β coefficient (p value)
KABC-II
KABC number recall	−0.36 (0.14)	−0.20 (0.15)	−0.10 (0.50)
KABC mental processing index	−0.09 (0.15)	−0.06 (0.10)	−0.03 (0.43)
TOVA
TOVA ADHD score	0.02 (0.92)	0.02 (0.78)	−0.002 (0.98)
TOVA total commission errors	0.08 (0.04)	0.04 (0.06)	0.05 (0.03)
TOVA total omission errors	0.05 (0.02)	0.03 (<0.01)	0.01 (0.30)
TOVA total response time	0.01 (0.02)	0.003 (0.04)	0.003 (0.05)
TOVA response time variability	0.01 (0.01)	0.007 (0.02)	0.006 (0.05)

^aMixed effects models were adjusted for clustering by primary caregiver.

^bKABC-II and TOVA evaluations were performed only on the subgroup of participants age 5 and over.