I would like help with the following question:


If my experimental design structure looks like this:
 
    
     A     B
          
 \   /
    
C       D
       
\    /
         
E
         
|
        
 F
 
Where A&B are whole plot factors, C, D, E & F are subplot factors.  D is nested in A&B, E is nested in C&D, and F is nested in E.


I would expect:
 
y= A + B + AB + error(wholeplot)
     + C +
D(AB) + CD + AC + BC + ABC+ E(CD) + F(E) + error(subplot)
 
1    1)      Is CD also nested in
A&B?
2    2)      Is there a CF
interaction term?  Or does the nesting of F within E eliminate that
possibility?
2    3)      Same question as
above where F is nested in a chain that begins with A, does the chain of
nesting eliminate interaction terms at all levels?
 
Joe Hightower


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The truth is that I am not a great man but an ordinary person who is trying with the Lord's help to make it through life without stumbling.

- Stephen T. Davis

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