β
Personal attitudes & intentions+
Approval: premarital sex	.16 ***
	(.02)
Approval: sex with friends	.05 *
	(.02)
Wants to get pregnant	.31 ***
	(.09)
Previous experiences+ and age
Sexual debut <=14 years†	.15
	(.14)
Ever had sex	.97 ***
	(.08)
Cumulative no. sex partners	.03 **
	(.01)
Cumulative no. births	−.15
	(.09)
Age	.21 ***
	(.02)
Current relationship
Status (ref: none)
Married	.83 ***
	(.16)
Engaged	.67 ***
	(.10)
Special	.44 ***
	(.05)
Relationship duration	.00
	(.00)
Friends context+
Friends’ approval of sex	.15 ***
	(.02)
Prop. friends sexually active	.10 ***
	(.02)
Family context+ and race
Parents’ approval of sex	.13 ***
	(.02)
Mother <20 at first birth†	−.13
	(.10)
Mother’s education (ref: <H.S.) †
Completed H.S.	.30
	(.17)
Completed college	.44 *
	(.19)
Received public assistance as a child†	−.05
	(.10)
African American†	−.58 ***
	(.11)
Institutional contexts+
School
Enrolled in college	.18 **
	(.06)
Religion
Highly religious†	−.24 *
	(.10)
Frequency of religious attendance†	.01
	(.03)
Constant	−4.39 ***
	(.50)
Observations (weeks)	3,516
Number of respondents	518

Note: The sample is limited to weeks in which the question about desire for sex was asked.

Standard errors in parentheses,

^***p<0.001,

^**p<0.01,

^*p<0.05

⁺Measures are lagged and reflect respondents’ situation as of the prior week.

^†Measure was assessed once at baseline and therefore does not vary within respondents over time.