. Author manuscript; available in PMC: 2011 Feb 1.

Published in final edited form as: J Math Psychol. 2010 Feb 1;54(1):28–38. doi: 10.1016/j.jmp.2009.10.002

Table 4.

Median values of model parameters for the PVL model.

	Recency (A)^**	Utility shape (α)^**	Loss Aversion (λ)^**	Consistency (c)^***
Controls	.06	.44	.73	1.64
Users	.21	.99	.01	.88

Note. Groups were compared using the Mann-Whitney U test.

^**

p < .01;

^***

p < .001