. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: Behav Processes. 2015 Mar 18;114:52–62. doi: 10.1016/j.beproc.2015.03.006

Table 3.

Skewness (and kurtosis) values for b and s for models incorporating amount and delay sensitivity (Rachlin's formulation [Equ. 4] and the hyperboloid [Equ. 5]) for the groups and conditions within each dataset.

	Equ. 4: A/1+bD⁵		Equ. 5:A/(1+bD)⁵

Dataset	b	s	b	s
ADHD
Diagnosed	4.65 (23.68)	0.85 (−0.11)	10.23 (104.83)	2.54 (6.83)
Undiagnosed	3.77 (16.68)	0.05 (−0.89)	6.82 (45.41)	2.44 (6.62)
SMOKING
Smokers	4.09 (17.52)	0.29 (1.88)	7.62 (58.00)	6.45 (43.56)
Never smokers	1.72 (3.10)	1.47 (2.36)	6.23 (41.37)	5.90 (36.21)
AMOUNT
$10	3.23 (10.07)	1.81 (5.07)	5.39 (29.00)	5.37 (28.88)
$100	2.79 (7.05)	−0.04 (1.78)	5.39 (29.00)	2.22 (27.86)