In a controlled experiment; what is the primary purpose of a control group?
Difficulty: Medium
About this MCQ
Medium ACT item. Correct choice: A. To provide a baseline for comparison against the experimental group.
- A. To provide a baseline for comparison against the experimental group ✓
- B. To increase the sample size of the study
Why not B: “To increase the sample size of the study” is not To provide a baseline for comparison against the experimental group.
- C. To test multiple variables simultaneously
Why not C: “To test multiple variables simultaneously” is not To provide a baseline for comparison against the experimental group.
- D. To eliminate the need for a hypothesis
Why not D: “To eliminate the need for a hypothesis” is not To provide a baseline for comparison against the experimental group.
Correct answer
A. To provide a baseline for comparison against the experimental group
Explanation
To provide a baseline for comparison against the experimental group option A is the accepted answer to In a controlled experiment what is the primary purpose of a control group Option B To increase the sample size of the study is a different value from To provide a baseline for comparison against the experimental group Option C To test multiple variables simultaneously is a different value from To provide a baseline for comparison against the experimental group Option D To eliminate the need for a hypothesis is a different value from To provide a baseline for comparison against the experimental group Keep To provide a baseline for comparison against the.
Source: Original practice question; MCQsHub
Tags: Science, American Exams, ACT, Experimental Design
Submitted by: MCQsHub Editorial
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