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A longitudinal study experimentally evaluating the impacts of class size in early education on various outcomes (Mosteller, 1995)

Usage

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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