Table 1.

Comparison of sequential and randomized alcohol purchase tasks.

Self-reported alcohol consumption
Price	Random order	Pearson’s r	t(90)
Free	3	0.86***	n.s.
$0.02	25	0.78***	n.s.
$0.10	11	0.74***	n.s.
$0.25	7	0.86***	n.s.
$0.50	18	0.66***	n.s.
$0.75	23	0.79***	n.s.
$1.00	10	0.76***	n.s.
$2.00	2	0.65***	n.s.
$3.00	16	0.87***	n.s.
$4.00	14	0.85***	n.s.
$5.00	12	0.89***	n.s.
$6.00	1	0.76***	3.02**
$7.00	20	0.58***	n.s.
$8.00	24	0.67***	n.s.
$9.00	8	0.70***	3.14**
$10.00	17	0.58***	n.s.
$12.00	13	0.63***	n.s.
$14.00	21	0.74***	n.s.
$16.00	5	0.50***	2.61*
$18.00	9	0.13	2.15*
$20.00	15	0.33**	n.s.
$22.50	22	0.70***	n.s.
$25.00	4	0.40***	2.29*
$27.50	6	0.57***	n.s.
$30.00	19	0.70***	n.s.
Demand curve indices
		Pearson’s r	t(90)
Intensity		0.86***	n.s.
Breakpoint		0.84***	n.s.
Omax		0.79***	4.42***
Pmax		0.66***	3.92***
α		0.84***	9.97***

N = 91; *p < 0.05; **p < 0.01; ***p < 0.001.