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Math Help - Is it a DIRECTIONAL hypothesis - Due in less than 24 hours.

  1. #1
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    Is it a DIRECTIONAL hypothesis - Due in less than 24 hours.

    You want to test the question of whether or not a drug increases the heart rate of rats it is given to. This is an example of a DIRECTIONAL hypothesis.

    True or False.




    I said false because a non directional hypothesis only predicts a difference between two variables, and not if it's either a positive or negative correlation.
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  2. #2
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    Quote Originally Posted by funnyname7 View Post
    You want to test the question of whether or not a drug increases the heart rate of rats it is given to. This is an example of a DIRECTIONAL hypothesis.

    True or False.




    I said false because a non directional hypothesis only predicts a difference between two variables, and not if it's either a positive or negative correlation.
    Hi funnyname7,

    if the question was whether or not the drug affects the heart rate,
    that would be non-directional.

    A decrease in heart rate would be a change in the negative direction.
    An increase in heart rate is a change in the positive direction.
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  3. #3
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    Quote Originally Posted by Archie Meade View Post
    Hi funnyname7,

    if the question was whether or not the drug affects the heart rate,
    that would be non-directional.

    A decrease in heart rate would be a change in the negative direction.
    An increase in heart rate is a change in the positive direction.

    So, this statement is true because we are only testing if it increases the heart rate or not.

    Thanks.
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