. Author manuscript; available in PMC: 2010 Feb 1.

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2009 Aug;48(8):837–846. doi: 10.1097/CHI.0b013e3181ab8c97

Table 4.

Using extreme group membership to predict IDA scores

Extreme group (top 5%)	n (total)	b	SE¹	p	95% CI²	R²
ADHD-IN ³	32(542)	10.39	4.94	.036	(0.68, 20.10)	0.009
ADHD-H/I ⁴	25(542)	−0.81	3.76	.83	(−8.20, 6.58)	0.000
ADHD-CO ⁵	19(542)	4.08	5.46	.46	(−6.65, 14.81)	0.001

Note: Linear regression has been used to examine whether extreme group membership can predict index of delay aversion (IDA) scores.

Robust standard error.

Confidence intervals.

ADHD-Inattentive extreme group.

⁴

ADHD-Hyperactive/impulsive extreme group.

⁵

ADHD-Combined subtype extreme group.