7/22

                Estimate Est.Error       Q2.5      Q97.5
Intercept      2.1912073 0.1504091  1.9015414  2.5112313
kinderregular  0.1051215 0.1985746 -0.2971014  0.4780892
raceblack     -0.6489938 0.2389035 -1.0835649 -0.1655108
raceasian     -0.5010612 0.8385276 -2.0798444  1.1308878

Question?

What is the causal effect on graduation rate of class size right now? Preceptor table: Classtype, hsgrad units: students

Validity: class size definition could have changed data collection Stability: Students changing class sizes before graduation Representativeness: Unconfoundnedness:

Quantity of Interest? Causal Effect