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Appendix C
Notes for Tables and Figures Displaying Results Calculated with the Riverside DPSS P3 Automated Program Tracking System and Child Care Payment Records Data
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.
“Year 1” refers to Quarters 2 to 5. Quarter 1 is the quarter in which random assignment took place. Quarters 2 to 5 make up the one-year follow-up period for each sample member. “Months 1 to 26” refers to the months of follow-up for the entire sample.
Dollar averages include zero values for sample members who did not receive child care or other supportive services or were not employed or were not receiving TANF or food stamps.
Unless otherwise stated, results are for single-parent sample members who were randomly assigned from July 1, 2002, to June 30, 2003.
NA = not applicable.
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