*
chapter_14_table_8

For the hypothetical data contained in Table 14.8, a perceptual psychologist 
is interested in age differences ("young" and "old") in reaction time on a 
perceptual task. In addition, the psychologist is also interested in the effect 
of angle (zero degrees off center and eight degrees off center). The question of 
interest is to see if there are is a main effect of age, a main effect of angle, 
and an interaction between the two. 

The analysis of Table 14.8 literally combines what we have learned from the syntax
of repeated measures designs as well as from between subjects designs. For the 
analysis of this data we simply specify group as a classification variable and 
specify that our two dependent variables are repeated. 

The results obtained match those given in the text on pages 707 (for the between-
subject main effect), 709 (for the interaction), and 712 (for the within-subject 
main effect).
;

LIBNAME md 'd:\data files by type\sas data files\tables';
     Data c14t8;
       SET md.chapter_14_table_8;
PROC GLM;
CLASS group;
MODEL angle0 angle8 = group / NOUNI;
REPEATED angle 2;
RUN;