Randy
 
My stats instructor emphasized that you don't always need stats - my thesis 
 was mostly a descriptive study of behavioral observations.
 
His example of when stats aren't needed was an experiment of plants grown  
in a pot.  Set up 6 pots.  Plant a plant in each.  Then, treat  each pot 
with an incremental difference in something that will affect plant  growth.  
This could simply be the amount of water provided to each pot, or  you could 
be testing an herbicide.  
 
End of say 6 weeks, if you get a tall, lush plant in the control pot,  
descending to a dead plant in a pot in the final treatment (least water, or  
highest herbicide), a photograph will suffice.
 
Now, that good advice, but I'll bet one couldn't get it published in a  
peer-reviewed journal :)   Jerry

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