Author Question: 4Ann is conducting a study about genes and their relation to height. She think (Read 703 times)

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4   Ann is conducting a study about genes and their relation to height.  She thinks genes are important when it comes to height, but she also thinks that nutrition may play a part.  If this is true, nutrition would be a ____________ in her study.
   a.   reverse-causality
   b.   random variable
   c.   third-variable
   d.   dependent variable




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