Table 4.

Demographic characteristics for the full Study 2 sample and as a function of performance on the delay discounting attention checks (n and %; or median and first and third quartiles).

	DD Attention Check Performance
Variable	Full Sample N = 430	Failed Any n = 48	Passed Both n = 382	p
Age	38 (31 – 48)	36 (31 - 41)	38 (31 – 49)	0.122
Sex				0.065
Male	214 (49.8%)	30 (62.5 %)	184 (48.2 %)
Female	213 (49.5%)	17 (35.4 %)	196 (51.3 %)
N/A	3 (0.7%)	1 (2.1 %)	2 (0.5 %)
Race				0.350
White	335 (77.9%)	37 (77.1 %)	298 (78 %)
Black/African American	32 (7.4%)	6 (12.5 %)	26 (6.8 %)
Asian	36 (8.4%)	4 (8.3%)	32 (8.4%)
Other	27 (6.3%)	1 (2.1%)	26 (6.8%)
N/A	0 (0 %)	0 (0 %)	0 (0 %)
Ethnicity				0.436
Hispanic/LatinX	41 (9.5%)	6 (12.5 %)	35 (9.2 %)
Not Hispanic/LatinX	389 (90.5%)	42 (87.5 %)	347 (90.8 %)
N/A	0 (0 %)	0 (0 %)	0 (0 %)
Yearly Income				0.678
$29,999 or less	130 (30.2%)	10 (20.8%)	120 (31.4%)
$30,000 - $59,999	150 (34.9%)	19 (39.6%)	131 (34.3%)
$60,000-$89.999	68 (15.8%)	8 (16.7%)	60 (15.7%)
$90,000-$119,999	40 (9.3%)	6 (12.5%)	34 (8.9%)
$120,000 or more	31 (7.2%)	4 (8.3%)	27 (7.1%)
N/A	11 (2.6%)	1 (2.1%)	10 (2.6%)
Education (Highest Degree)				0.144
Less than high school	4 (0.9%)	0 (0%)	4 (1.0%)
High school	49 (11.4%)	2 (4.2%)	47 (12.3%)
Some college (no degree)	77 (17.9%)	4 (8.3%)	73 (19.1%)
Associate	51 (11.9%)	7 (14.6%)	44 (11.5%)
Bachelor's	182 (42.3%)	24 (50.0%)	158 (41.4%)
Master's	58 (13.5%)	9 (18.8%)	49 (12.8%)
Doctoral	8 (1.9%)	2 (4.2%)	6 (1.6%)
Professional (JD, MD)	1 (0.2%)	0 (0%)	1 (0.3%)
N/A	0 (0%)	0 (0%)	0 (0%)

Note. Age is rounded to the nearest year. Descriptive statistics for income are shown in 30K categories for brevity, but were assessed in $15K-increment categories.