Contains data from http://fmwww.bc.edu/ec-p/data/stockwatson/star_sw.dta
  obs:        11,598                          
 vars:            40                          30 Jul 2002 12:03
 size:     1,345,368 (97.4% of memory free)
-------------------------------------------------------------------------------
              storage  display     value
variable name   type   format      label      variable label
-------------------------------------------------------------------------------
stark           byte   %8.0g       stark      attend project star class in
                                                kindergarten
star1           byte   %8.0g       star1      attend project star class in
                                                1st grade
star2           byte   %8.0g       star2      attend project star class in
                                                2nd grade
star3           byte   %8.0g       star3      attend project star class in
                                                3rd grade
totexpk         byte   %8.0g       totexpk    years of total teaching
                                                experience - kindergarten
treadssk        int    %8.0g                  total reading scaled score -
                                                sesat ii stanford
tmathssk        int    %8.0g                  total math scaled score - sesat
                                                ii stanford
totexp1         byte   %8.0g       totexp1    years of total teaching
                                                experience - 1st grade
treadss1        int    %8.0g                  total reading scaled score -
                                                primary 1 stanford
tmathss1        int    %8.0g                  total math scaled score -
                                                primary 1 stanford
totexp2         byte   %8.0g       totexp2    years of total teaching
                                                experience - 2nd grade
treadss2        int    %8.0g                  total reading scaled score -
                                                primary 2 stanford
tmathss2        int    %8.0g                  total math scaled score -
                                                primary 2 stanford
treadss3        int    %8.0g                  total reading scaled score -
                                                primary 3 stanford
tmathss3        int    %8.0g                  total math scaled score -
                                                primary 3 stanford
totexp3         byte   %8.0g       totexp3    years of total teaching
                                                experience -  3rd grade
schidkn         int    %8.0g       schidkn    school id-k (new) kindergarten
schid1n         int    %8.0g       schid1n    school id-g1 (new) 1st grade
schid2n         int    %8.0g       schid2n    school id-g2 (new) 2nd grade
schid3n         int    %8.0g       schid3n    school id-g3 (new) 3rd grade
tscorek         float  %9.0g                  
tscore1         float  %9.0g                  
tscore2         float  %9.0g                  
tscore3         float  %9.0g                  
sck             float  %9.0g                  
sc1             float  %9.0g                  
sc2             float  %9.0g                  
sc3             float  %9.0g                  
rak             float  %9.0g                  
ra1             float  %9.0g                  
ra2             float  %9.0g                  
ra3             float  %9.0g                  
white           float  %9.0g                  
black           float  %9.0g                  
other           float  %9.0g                  
boy             float  %9.0g                  
freelunk        float  %9.0g                  
freelun1        float  %9.0g                  
freelun2        float  %9.0g                  
freelun3        float  %9.0g                  
-------------------------------------------------------------------------------
Sorted by:  

Contains data from http://fmwww.bc.edu/ec-p/data/stockwatson/webstar.dta
  obs:        11,598                          
 vars:            53                          
 size:       893,046 (98.3% of memory free)
-------------------------------------------------------------------------------
              storage  display     value
variable name   type   format      label      variable label
-------------------------------------------------------------------------------
newid           long   %12.0g      newid      new student id for public star
                                                datasets
ssex            byte   %8.0g       ssex       student sex   (1m2f)
srace           byte   %8.0g       srace      student race  (1w2b3a4h5i6o)
sbirthq         byte   %8.0g       sbirthq    quater of students birth
sbirthy         int    %8.0g       sbirthy    year of students birth
stark           byte   %8.0g       stark      attend project star class in
                                                kindergarten
star1           byte   %8.0g       star1      attend project star class in
                                                1st grade
star2           byte   %8.0g       star2      attend project star class in
                                                2nd grade
star3           byte   %8.0g       star3      attend project star class in
                                                3rd grade
cltypek         byte   %8.0g       cltypek    classroom type  (1s2r3ra) in
                                                kindergarten
cltype1         byte   %8.0g       cltype1    classroom type  (1s2r3ra) in
                                                first grade
cltype2         byte   %8.0g       cltype2    classroom type  (1s2r3ra) in
                                                second grade
cltype3         byte   %8.0g       cltype3    classroom type  (1s2r3ra) in
                                                third grade
schtypek        byte   %8.0g       schtypek   school type - (1i2s3r4u) in
                                                kindergarten
hdegk           byte   %8.0g       hdegk      highest degree (tch) of
                                                kindergarten teacher
cladk           byte   %8.0g       cladk      teacher career ladder level in
                                                kindergarten
totexpk         byte   %8.0g       totexpk    years of total teaching
                                                experience - kindergarten
tracek          byte   %8.0g       tracek     teacher race  (1w2b3a4h5i6o) in
                                                kindergarten
treadssk        int    %8.0g                  total reading scaled score -
                                                sesat ii stanford
tmathssk        int    %8.0g                  total math scaled score - sesat
                                                ii stanford
sesk            byte   %8.0g       sesk       socio-economic status in
                                                kindergarten
schtype1        byte   %8.0g       schtype1   school type - (1i2s3r4u) in
                                                first grade
trace1          byte   %8.0g       trace1     teacher race  (1w2b3a4h5i6o) in
                                                1st grade
hdeg1           byte   %8.0g       hdeg1      highest degree (tch) of 1st
                                                grade teacher
clad1           byte   %8.0g       clad1      teacher career ladder level in
                                                1st grade
totexp1         byte   %8.0g       totexp1    years of total teaching
                                                experience - 1st grade
treadss1        int    %8.0g                  total reading scaled score -
                                                primary 1 stanford
tmathss1        int    %8.0g                  total math scaled score -
                                                primary 1 stanford
ses1            byte   %8.0g       ses1       socio-economic status in 1st
                                                grade
schtype2        byte   %8.0g       schtype2   school type - (1i2s3r4u) in 2nd
                                                grade
trace2          byte   %8.0g       trace2     teacher race  (1w2b3a4h5i6o) in
                                                2nd grade
hdeg2           byte   %8.0g       hdeg2      highest degree (tch) of 2nd
                                                grade teacher
clad2           byte   %8.0g       clad2      teacher career ladder level in
                                                2nd grade
totexp2         byte   %8.0g       totexp2    years of total teaching
                                                experience - 2nd grade
treadss2        int    %8.0g                  total reading scaled score -
                                                primary 2 stanford
tmathss2        int    %8.0g                  total math scaled score -
                                                primary 2 stanford
ses2            byte   %8.0g       ses2       socio-economic status in 2nd
                                                grade
schtype3        byte   %8.0g       schtype3   school type - (1i2s3r4u) in
                                                third grade
treadss3        int    %8.0g                  total reading scaled score -
                                                primary 3 stanford
tmathss3        int    %8.0g                  total math scaled score -
                                                primary 3 stanford
ses3            byte   %8.0g       ses3       socio-economic status in 3rd
                                                grade
trace3          byte   %8.0g       trace3     teacher race  (1w2b3a4h5i6o) in
                                                3rd grade
hdeg3           byte   %8.0g       hdeg3      highest degree (tch) of 3rd
                                                grade teacher
clad3           byte   %8.0g       clad3      teacher career ladder level in
                                                3rd grade
totexp3         byte   %8.0g       totexp3    years of total teaching
                                                experience -  3rd grade
sysidkn         int    %8.0g       sysidkn    sch system id-k (new)
                                                kindergarten
sysid1n         int    %8.0g       sysid1n    sch system id-g1 (new) 1st grade
sysid2n         int    %8.0g       sysid2n    sch system id-g2 (new) 2nd grade
sysid3n         int    %8.0g       sysid3n    sch system id-g3 (new) 3rd grade
schidkn         int    %8.0g       schidkn    school id-k (new) kindergarten
schid1n         int    %8.0g       schid1n    school id-g1 (new) 1st grade
schid2n         int    %8.0g       schid2n    school id-g2 (new) 2nd grade
schid3n         int    %8.0g       schid3n    school id-g3 (new) 3rd grade
--------------------------------------------------------------------------

THE PROJECT STAR DATA SET

The Project STAR public access data set contains data on test scores, treatment groups, and student and teacher 
characteristics for the four years of the experiment, from academic year 1985-86 to academic year 1988-89.  
The test score data analyzed in this chapter are the sum of the scores on the math and reading portion of the Stanford Achievement Test.  
The binary variable ÒBoyÓ in Table 11.2 indicates whether the student is a boy (= 1) or girl (= 0);  
the binary variables ÒBlackÓ and ÒRace other than black or whiteÓ indicate the studentÕs race.  
The binary variable ÒFree lunch eligibleÓ indicates whether the student is eligible for a free lunch during that school year.  
The teacherÕs years of experience are the total years of experience of the teacher whom the student had in the grade for which the test data apply. 
 The data set also indicates which school the student attended in a given year, making it possible to construct binary school-specific indicator 
 variables.


We have included two versions of the data set on the website. STAR_SW includes the variables that were used in the analysis in Chapter 11.  WEBSTAR constains the complete dataset (which we downloaded from the Project STAR website http://www.heros-inc.org/star.htm)