*COMMENTS FOLLOW ASTERISKS;
*WE HAVE DATA SAVED BY SPSS IN A PORTABLE (.POR) FILE;
*WE REFER TO THIS FILE AS 'APS' BELOW;
FILENAME APS 'C:\EXAMPLE.POR';
RUN;
*PROC CONVERT CREATES A SAS FILE FROM EXAMPLE.POR;
PROC CONVERT SPSS=APS OUT=FORSAS;
 RUN;
PROC FREQ DATA=FORSAS;
 TABLE Y*X;
 RUN;

PROC GENMOD ;
 CLASS SUBNUM;
 MODEL Y= X T X*T  /DIST=POISSON;
 REPEATED SUBJECT=SUBNUM/TYPE=EXCH;
 TITLE 'PREDICTING SIM AGGRESSION NO MEDIATOR CONSIDERED';
 RUN;
PROC GENMOD ;
 CLASS SUBNUM;
 MODEL Y= X T X*T M M*T /DIST=POISSON;
 REPEATED SUBJECT=SUBNUM/TYPE=EXCH;
  TITLE 'MEDIATOR INCLUDED';
 RUN;
PROC GENMOD ;
 CLASS SUBNUM;
 MODEL M= X T X*T  /DIST=NORMAL LINK=ID;
 REPEATED SUBJECT=SUBNUM/TYPE=EXCH;
  TITLE 'PREDICTING MEDIATOR';
 RUN;