User Guide for the TIMSS International Database.pdf - TIMSS and ...

P E R F O R M I N G A N A L Y S E S C H A P T E R 9
Figure 9.17
SAS Control Statements for Performing Analyses with School-Level Variables
(EXAMPLE3.SAS)
options nocenter;
* Read the variables from the school file and sort them by the merge variables;
data school;
set bcgall1
(keep=idcntry idschool bcbgcomm);
proc sort data=school;
by idcntry idschool;
* Read the variables from the student file and sort them by the merge variables;
data student;
set bsgall1
(keep=idcntry idschool idgrader jkindic jkzone
totwgt bimatscr );
proc sort data=student;
by idcntry idschool;
* Merge the student and school files together;
data merged;
merge student school;
by idcntry idschool;
if nmiss(bcbgcomm)=0;
proc format library=work;
value grade 1 = "Seventh Grade " 2 = "Eighth Grade" ;
value comm 1 = "Community Type 1 " 2 = "Community Type2"
3 = "Community Type 3 " 4 = "Community Type 4" ;
value country
036 = "Australia " 040 = "Austria " 056 = "Belgium (Fl) "
057 = "Belgium (Fr) " 100 = "Bulgaria " 124 = "Canada "
170 = "Colombia " 196 = "Cyprus " 200 = "Czech Republic "
208 = "Denmark " 826 = "England " 250 = "France "
280 = "Germany " 300 = "Greece " 344 = "Hong Kong "
348 = "Hungary " 352 = "Iceland " 364 = "Iran, Islamic Rep. "
372 = "Ireland " 376 = "Israel " 380 = "Italy "
392 = "Japan " 410 = "Korea " 414 = "Kuwait "
428 = "Latvia (LSS) " 440 = "Lithuania " 528 = "Netherlands "
554 = "New Zealand " 578 = "Norway " 608 = "Philippines "
620 = "Portugal " 642 = "Romania " 643 = "Russian Federation "
827 = "Scotland " 702 = "Singapore " 201 = "Slovak Republic "
890 = "Slovenia " 717 = "South Africa " 724 = "Spain "
752 = "Sweden " 756 = "Switzerland " 764 = "Thailand "
840 = "United States" ;
* Now use the macro JACK to get the results;
%include "jack.sas";
%jack (totwgt,jkzone,jkindic,75,idcntry idgrader bcbgcomm,bimatscr,merged);
proc print data=final noobs;
where idgrader = 2;
by idcntry idgrader;
var bcbgcomm N totwgt mnx mnx_se pct pct_se;
format idcntry countryl. idgrader grade. bcbgcomm comm.;
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