Table A2. Comparison of Average Treatment Effects and OLS Regression Estimates of Experiencing Parents' Marital Dissolution on Academic Achievement, Analyses Constrained to Area of Common Support.

	Propensity Score Matching Methods

	Average Treatment Effect for the Treated of Experiencing Parents' Marital Dissolution^a		OLS Regression

	Nearest Neighbor Matching	Kernel Matching	Estimated Effect of Experiencing Parents' Marital Dissolution^a
Achievement gains from Wave I to Wave II
Math course work completed	−0.177 (0.188)	−0.172 (0.136)	−0.091 (0.224)
Overall GPA	−0.283^*** (0.127)	−0.273^*** (0.096)	−0.301^* (0.118)
Course failure	0.092^*** (0.033)	0.079^*** (0.028)	0.082^*** (0.018)
Treatment observations	65	65	65
Control observations	62	2,505	2,505
Total N	127	2,570	2,570

Note: Source: The National Longitudinal Study of Adolescent Health (Add Health) and Adolescent Health and Academic Achievement Study (AHAA). OLS regression models include control variables signifying the following family and parent characteristics: mother's race and ethnicity, parents' racial homogamy, parents' education level, family income, financial distress, mother's work status, parents' health conditions (obesity, diabetes, asthma or emphysema, and alcoholism), parents' relationship characteristics, parents' religiosity, parents' age, and parents' educational expectations for their child. Models also include indicators of an adolescents' age, gender, number of siblings, educational expectations, academic risk behavior, and attachment to and engagement in school. Other control variables include an indicator of the length of time between Wave I and II interviews and an indicator of missing data on any control variable in the OLS regression model.

Standard errors are given in parentheses.

p < .05.

^**

p < .01.

^***

p < .001 (two-tailed test).