Table A.7

Promise Effects on Credits Attempted

MethodOLSRFIV
(1)(2)(3)
Panel A: Credits Attempted at Two Years
(Mean of DV | After =0, Elig. =1) =25.00
After ×Eligible3.236**0.9721.408
[1.646][1.563][2.265]
R20.2020.1990.199
N4,9024,9024,902
p-value of difference between (1) and (3)0.503
Panel B: Credits Attempted at Three Years
(Mean of DV | After =0, Elig. =1) =36.11
After × Eligible4.309*1.3321.961
[2.468][2.319][3.414]
R20.2150.2120.212
N4,3764,3764,376
p-value of difference between (1) and (3)0.588
Panel C: Credits Attempted at 4 Years
(Mean of DV | After =0, Elig. =1) =46.59
After × Eligible6.562*2.4863.630
[3.359][3.169][4.627]
R20.2090.2070.207
N3,8693,8693,869
p-value of difference between (1) and (3)0.605
  • Notes: Standard errors robust to heteroskedasticity are in brackets. *p < 0.10, **p < 0.05, ***p < 0.01. Outcome timing is since high school graduation. Regressions include dummies for after the Promise, individual (pseudo-)eligibility, sex, race/ethnicity, free/reduced-price lunch status, and high school of graduation-by-graduation year. The mean of the dependent variable is for eligibles in the pre-Promise period. In Column 1, prior to 2006, eligibility is based on Promise rules had the Promise been in effect at the time (rules-based eligibility). After 2006, eligibility is taken from Promise administrative records (observed eligibility). Column 2 always uses rules-based eligibility. Column 3 rescales Column 2 by the first-stage coefficient. This first- stage coefficient is obtained, for the post-Promise period, by regressing observed eligibility on rules-based eligibility (and the same covariates as above). The first-stage coefficient in Panel A is 0.690, 0.679 in Panel B, and 0.685 in Panel C; see Appendix Table A.5, Columns 2–4. The first-stage F-test statistic is 1,153 in Panel A, 953 in Panel B, and 819 in Panel C. The p-values are from a Hausman test of equality of the OLS and IV estimate.