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Interaction effecfs in Randomized Block Design

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  • #68130

    Ken K.
    Participant

    Simple answer #1: Read the relavent chapter in Douglas Montgomery’s “Design and Analysis of Experiments”.
    Simple answer #2: Get a good statistical package (MINITAB, StatGraphics, JMP, DesignExpert) and use it to calculate the interaction.

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    #68131

    Neil Polhemus
    Participant

    Interaction effects are typically not calculated in a randomized block design, because blocking factors and experimental factors are usually assumed not to interact. Further, unless there is replication, there will be no degrees of freedom available to estimate the experimental error if you do estimate the interactions. However, you may estimate the interactions if you like by treating the randomized block design as a factorial with two experimental factors.

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    #27691

    Nuno N.
    Participant

    Dear all
    My question is very simple “How to calculate the interacton effects in Randomized Block Design”
    Regurds,
    Nuno N.

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