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Appendix G
Notes for Tables and Figures Displaying Results Calculated with Responses to the ERA 12-Month Survey
Estimates were regression-adjusted using ordinary least squares, controlling for several pre-random assignment characteristics of sample members. The regression model includes covariates representing the sites where the evaluation was conducted, which adjusts for the differences by site in random assignment ratio.
Rounding may cause slight discrepancies in calculating sums and differences.
A two-tailed t-test was applied to differences between outcomes for the program and control groups. Statistical significance levels are indicated as: * = 10 percent; ** = 5 percent; and *** = 1 percent.
Italics indicate comparisons that are nonexperimental. These measures are computed only for sample members who were employed. Since there may be differences in the characteristics of program group and control group members who were employed, any differences in outcomes may not necessarily be attributable to the ERA program. Statistical tests were not performed.
All survey tables pertain only to the single-parent sample.
NA = not applicable.
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