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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Drug Alcohol Depend. 2014 Jul 23;143:105–111. doi: 10.1016/j.drugalcdep.2014.07.012

Figure 1.

Figure 1

Comparison of children with family histories of substance use disorders (FH+) or without such histories (FH−) on delay discounting (indexed by k values). FH+ children discounted delayed rewards more steeply than FH− children [F (1,384) = 4.36, p = 0.04], and all children discounted less with increasing reward magnitude [F(2, 768) = 21.68, p <.001].