Table 3 The Effect of Head Start Exposure on Long-Term Outcomes, Intent to Treat Estimates High Self- Own Household High School College Rated Health Health Composite Income Income Unemployment Grade Dropout Graduate Health Conditions Limitation (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Head Start 0.0810* 2,199% 2.918 -0.005 0.125# -0.012 0.022 0.041 -0.003 -0.046*#* exposure (0.023) (877.145) (1.437.375) (0.007) (0.051) (0.010) (0.013) (0.032) (0.018) (0.015) Observations 2.685 2.272 2.273 2.554 2.559 2.559 2.559 2.270 2.271 2.271 Control group 40.503 68,518 0.128 13.05 0.0784 0.174 3.666 0.297 0.245 mean Percent change 5.4% 4.3% -4.2% 1.0% -14.7% 12.8% 1.1% -1.2% -18.7% Notes: Column titles indicate the dependent variable: see Section II of the text for detailed variable descriptions, Head Start exposure is measured using average program expenditures per child apes three to six in each respondent's county of birth during the calendar years that they were ages three to six, scaled by the sample mean of $170. Sample is restricted to respondents who were ages two to seven at the time of local Head Start implementation and who did not have a parent who attended college, The reported control group means are for respondents with no Head Start exposure. All models contain county and cohort fixed effects and sets of indicators for race, gender, birth order. number of siblings, and maternal education. Standard errors clustered at the county level are in parentheses. Custom NLSY79 sampling weights are applied. Significance levels: "p