title: 
  associative model for alcohol, tobacco, & marijuana
  manual method
  Data from table 5.1, page 64.
  Input from Appendix 5.1 page 156.
  Figure 5.1 page 66.
  Page 65 and Table 5.2 on page 66
data:  
  file is ch5.dat;
  format is free;
  type is correlation means stdeviations;
  nobservations = 357;
variable:  
  names are y1-y12; 
  usevar =  y1-y12;
analysis:
  type = general meanstructure;          
model:  
  alcint   by y1@1  y2@1  y3@1  y4@1;
  alcslope by y1@0  y2@1  y3@2  y4@3;
  [alcint alcslope];
  [y1-y4@0];

  tobint   by y5@1  y6@1  y7@1  y8@1;
  tobslope by y5@0  y6@1  y7@2  y8@3;
  [tobint tobslope]; 
  [y5-y8@0];

  marint   by y9@1  y10@1  y11@1  y12@1;
  marslope by y9@0  y10@1  y11@2  y12@3;
  [marint marslope];
  [y9-y12@0];

output:  
  standardized;