A longitudinal study experimentally evaluating the impacts of class size in early education on various outcomes (Mosteller, 1995)
Format
A data frame with 1911 observations and 14 variables:
- treatment
A binary treatment indicating whether a student is assigned to small class and regular class without an aid
- g3tlangss
A continous variable measuring student's writing scores
- g3treadss
A continous variable measuring student's reading scores
- g3tmathss
A continous variable measuring student's math scores
- gender
Students' gender
- race
Students' race
- birthmonth
Students' birth month
- birthyear
Students' birth year
- SCHLURBN
Urban or rural
- GKENRMNT
Enrollment size
- GRDRANGE
Grade range
- GKFRLNCH
Number of students on free lunch
- GKBUSED
Number of students on school buses
- GKWHITE
Percentage of white students