Star {Ecdat} | R Documentation |
Effects on Learning of Small Class Sizes
Description
a cross-section from 1985-89
number of observations : 5748
observation : individuals
country : United States
Usage
data(Star)
Format
A dataframe containing :
- tmathssk
total math scaled score
- treadssk
total reading scaled score
- classk
type of class, a factor with levels (regular,small.class,regular.with.aide)
- totexpk
years of total teaching experience
- sex
a factor with levels (boy,girl)
- freelunk
qualified for free lunch ?
- race
a factor with levels (white,black,other)
- schidkn
school indicator variable
Source
Project STAR:
Description from 2001-06-02. Description from 2011-06-18.
References
Stock, James H. and Mark W. Watson (2003) Introduction to Econometrics, Addison-Wesley Educational Publishers, chapter 11.
See Also
Index.Source
, Index.Economics
, Index.Econometrics
, Index.Observations
[Package Ecdat version 0.4-2 Index]