Statistical Analysis for Education and Psychology Researchers

• CHANGE 3 VALUES
  IN THE
  PROGRAM: *;


• i) data set
  name, ii) response var to
  be *;


• analysed and
  iii) class var, (the var
  used *;


• to allocate
  subjects to
  groups *;

  ---

  
  

  ---

  
  

  *;
  *** ENTER YOUR DATA USING
  EITHER THE CARDS STATEMENT, AN
  EXTERNAL ;
  DATA FILE e.g. INFILE
  INPUT etc, or a LIBNAME
  STATEMENT **;
  proc summary data=all nway; *
  Change 'All' to your Data set
  name ;
  var score;
  EDIT response var to be
  analysed *;
  class age; **
  EDIT class var which is
  the ;

  
  

  ---

  
  

  classification var for the two
  groups*;
  DO NOT EDIT
  BELOW THIS LINE ;
  output out=out mean=ymean
  var=variance n=n;
  data b; set out;
  n2=n;
  n1=lag(n);

  
  

y2=ymean;
y1=lag (ymean);
variance=round(variance,
.001);
v2=variance;
v1=lag (variance);
alpha= .05;
ndiff=n1+n2;
ydiff= y1−y2;

Appendix 392