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What are the correct terms for taking of the medication and the growth of hair in the following study?

What are the correct terms for taking of the medication and the growth of hair in the following study?

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You are conducting a study to see whether a new experimental medication will cause bald men to grow hair. You divide your patients into 2 groups. To one group you give the medication. To the other group, you give a placebo.

A. Both the medication and the hair growth are dependent variables.
B. Both the medication and the hair growth are independent variables.
C. The medication is the dependent variable, and the hair growth is the independent variable.
D. The medication is the independent variable, and the hair growth is the dependent variable.

This question is part of Introduction to Statistics 1
Asked by Wyatt Williams, Last updated: Feb 24, 2020

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3 Answers

John Adney

John Adney

Answered Sep 14, 2017

The medication and the the hair growth are independent variable

 

nigus

Nigus

Answered Sep 07, 2017

The medication is the independent variable, and the hair growth is the dependent variable.

 

John Smith

John Smith

Answered Oct 22, 2016

The medication is the independent variable, and the hair growth is the dependent variable.

The independent variable does not depend on anything else in the experiment. Thus, whether the patient does or does not take the medication is the independent variable. It has 2 possible values: yes or no. The amount of hair growth is the dependent variable, since (theoretically) it depends on whether the patient takes the medication.
 

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