Table 1.

No differences were observed between risk or delay groups in omissions or choice latency for large or small reward in either task

	Risk-taking group comparison	Block × Risk-taking group interaction	Impulsivity group comparison	Block ×  Impulsivity group interaction
Omissions	t(17) = 0.142	F(4,68) = 1.040	t(17) = 0.862	F(4,68) = 1.279
	p = 0.889	p = 0.393	p = 0.401	p = 0.277
Large reward choice latency	t(17) = 1.666	N/A	t(17) = .529	N/A
	p = 0.114		p = 0.604
Small reward choice latency	t(17) = 1.470	N/A	t(17) = 0.082	N/A
	p = 0.160		p = 0.936

There were several blocks with choice of only one type of reward, which prevented assessment of group× block interactions for latency measures for large or small reward choice