| star {mlmRev} | R Documentation |
Data from Tennessee's Student Teacher Achievement Ratio (STAR) project which was a large-scale, four-year study of the effect of reduced class size.
data(star)
A data frame with 26796 observations on the following 18 variables.
idschgrK <
1 < 2 < 3cltypesmall,
reg and reg+A. The last level indicates a regular
class size with a teachers aide.hdegASSOC < BS/BA <
MS/MA/MEd < MA+ < Ed.S < Ed.D/Ph.DcladNOT APPR PROB PEND
1 2 3exptraceW,
B, A, H, I and O representing
white, black, Asian, Hispanic, Indian (Native American) and otherreadmathsesF and N representing eligible for free lunches or
not eligibleschtypeinner, suburb, rural and urbansxM Fethtracebirthq1977:1 < ... < 1982:2birthy1977:1982yrsgr with Kindergarten
represented as 0. This variable was generated from gr and
does not allow for a student being retained.tchDetails of the original data source and the process of conversion to this representation are given in the vignette.
http://www.heros-inc.org/data.htm
str(star)