INTRODUCTION
CELL ORGANELLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which statement best describes a controlled experiment?
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it eliminates the need for dependent variable
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it shows the effect of a dependent variable on an independent variable
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it avoids the use of variables
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it tests the effect of a single independent variable
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Explanation:
Detailed explanation-1: -Explanation: The correct answer for this question is The independent variable is changed to see its effect on the dependent variable while all other conditions are unchanged.
Detailed explanation-2: -Answer and Explanation: The correct answer is 2. The best description of a control group in an experiment is the control group is identical to each test group except for one variable.
Detailed explanation-3: -Answer and Explanation: A controlled experiment is one in which there is only one independent variable in the experimental group.
There is 1 question to complete.