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    In desiging an experiment that tests if stress is related to headaches, would this be a fine hypothesis:

    Stress and headaches are related to each other

    Or, it should be more specific?

    Thanks.
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    (Original post by SWEngineer)
    In desiging an experiment that tests if stress is related to headaches, would this be a fine hypothesis:

    Stress and headaches are related to each other

    Or, it should be more specific?

    Thanks.
    That is pretty terrible as a hypothesis. It needs to be more like:

    Stress is a cause of headaches
    Stress and headaches are frequently concomitant

    Or something like that.

    "related to each other" means almost nothing.
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    That makes it sound like they're long lost brothers or something :ahee:

    Definitely needs to be more specific :yep:
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    Wow, I do like the odd joke.
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    Awful.

    You need to operationalize your variables big time.

    What do you mean by stress? What kind of headaches? How are they related to each other?
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    Thanks for your replies.
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    Ho- There is a positive association between stress levels (define elsewhere) and the occurance of headaches
    H1- There is no association between levels of stress and the occurance of headaches

    This way you are saying your predicting a positive association, rather than that in some way the two should be related.
 
 
 
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