title: 
  associative model for alcohol, tobacco, & marijuana
  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 alcslope | y1@0  y2@1  y3@2  y4@3;
  tobint tobslope | y5@0  y6@1  y7@2  y8@3;
  marint marslope | y9@0 y10@1 y11@2 y12@3;
output:  
  standardized;