Table 1.

Demographic Information for Participants.

Variable	Total, % (n) or M (SD)	Low income, % (n) or M (SD)	High income, % (n) or M (SD)
Age (years)	30.1 (6.3)	27.0 (6.4)	32.0 (5.4)
Race/ethnicity
Non-Hispanic White	62% (116)	40% (27)	77% (88)
Black	20% (37)	35% (24)	10% (12)
Hispanic/Latino	6% (11)	10% (7)	3% (3)
Asian	6% (11)	9% (6)	4% (5)
Other/decline	7% (12)	6% (4)	7% (7)
Relationship status
Not in romantic relationship	7% (13)	13% (8)	5% (5)
Committed, living apart	7% (13)	6% (10)	3% (3)
Married or committed and living together	83% (148)	76% (42)	92% (103)
Divorced or separated	3% (4)	5% (3)	1% (1)
Expecting a child
Yes	36% (65)	36% (24)	36% (41)
Total children (includes pregnancy)	1.7 (1.2)	1.9 (1.6)	1.6 (0.8)
Annual household income
>$20,000	16% (29)	43% (29)	—
$20,000-$39,999	21% (39)	57% (39)	—
$40,000-$59,999	18% (33)	—	29% (33)
$60,000-$79,999	18% (33)	—	29% (33)
$80,000-$100,000	8% (15)	—	13% (15)
$100,000+	19% (34)	—	30% (34)
Education
No/some/all high school/GED	18% (33)	37% (27)	4% (5)
Some college	25% (47)	31% (21)	23% (26)
College graduate (2 year or 4 year)	36% (66)	24% (16)	42% (49)
Graduate	21% (39)	6% (4)	30% (35)
Employment
Employed/self-employed full-time	74% (139)	53% (36)	89% (102)
Employed/self-employed part-time/other paid work	17% (35)	29% (102)	8% (9)
Unemployed	9% (17)	18% (12)	4% (4)
Cell phone owner
Yes	99% (182)	96% (65)	99% (114)
Cell phone use
Never or rarely	3% (6)	6% (4)	2% (2)
Monthly	1% (2)	—	2% (2)
2-3 Times a week	3% (6)	7% (5)	1% (1)
Daily	93% (172)	87% (59)	96% (110)
Internet on phone?	88% (162)	84% (56)	90% (103)
Internet use
Never or rarely	4% (8)	11% (7)	1% (1)
Monthly	2% (3)	3% (2)	—
2-3 Times a week	7% (12)	12% (8)	4% (4)
Daily	88% (161)	75% (50)	96% (109)
Computer at home?	96% (174)	89% (59)	99% (112)
Internet access at home?	95% (170)	88% (56)	99% (111)

Note. Italicized questions and corresponding values in table reflect “yes” responses.