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In a case study in Chapter 5 of the textbook, researchers found the effect of a nicotine patch varied depending on whether there were other

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In a case study in Chapter 5 of the textbook, researchers found the effect of a nicotine patch varied depending on whether there were other smokers in the household. Whether others smoked in the household is: ' ' Aconfounding variable ' \\ An interacting variable 0 Acasecontrol variable ' ' None of the above

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