. Author manuscript; available in PMC: 2013 Mar 7.

Published in final edited form as: Sociol Methodol. 2012 Aug;42(1):314–347. doi: 10.1177/0081175012452652

Table 2. Homogenous Effects of College Attendance on Fertility (N=1,512).

Poisson Regression	Model 1	Model 2
College Attendance	−0.171 ^** (0.049)	−0.107 ^† (0.057)
Incidence rate ratio	0.843	0.899
Propensity Score	---	−0.221 ^* (0.108)
Incidence rate ratio		0.802
Constant	0.647 ^*** (0.024)	0.696 ^*** (0.034)
*Wald χ²*	12.10	15.59
*P > χ²*	0.001	0.000

Notes: Numbers in parentheses are standard errors.

Dependent variable is number of children by age 41. Propensity scores were generated by a probit regression model of college attendance by age 19 on the set of pre-college covariates.

^†

p<.10

p<.05

^**

p<.01

^***

p<.001 (two-tailed tests)