Factorial Designs- 2 x 2 B C A AB Effect of treatment T A is estimated as log(T A /C) Effect of treatment T A is estimated as log(T A /C) Effect of treatment T A in the presence of treatment T B is log(T AB /T B ) Effect of treatment T A in the presence of treatment T B is log(T AB /T B ) log(T AB /T B )-log(T A /C) is the Interaction between treatments log(T AB /T B )-log(T A /C) is the Interaction between treatments
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