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Evaluation of the DC Opportunity Scholarship Program: Impacts After Two Years

NCES 2009-4023
June 2008


Table 4.  Year 2 Impact Estimates of the Offer of a Scholarship on the Full Sample: Parent and Student Reports of School Danger (ITT)
 
Treatment Group
Mean
Control Group
Mean
Difference
(Estimated Impact)
School Danger Effect Size p-value
Parents  2.06 3.00 -.94** -.27 .00
Students  1.90 1.93 -.02 -.01 .87
**Statistically significant at the 99 percent confidence level.
NOTES: Means are regression-adjusted using a consistent set of baseline covariates. Effect sizes are displayed in terms of standard deviations of the study control group distribution. Valid N for parent survey = 1,555. Valid N for student survey = 1,025. Parent and student survey weights were used. Survey given to students in grades 4-12.