14. Control groups are used in experiments in order to (a) minimize the effects of variables that are not factors in the experiment on the outcome. (b) control the subjects of a study to ensure that all participate equally. (c) guarantee that someone other than the investigators, who have a vested interest in the outcome, controls how the experiment is conducted. d) achieve a proper and uniform level of randomization. e) reduce the variability in results.
14. Control groups are used in experiments in order to (a) minimize the effects of variables that are not factors in the experiment on the outcome. (b) control the subjects of a study to ensure that all participate equally. (c) guarantee that someone other than the investigators, who have a vested interest in the outcome, controls how the experiment is conducted. d) achieve a proper and uniform level of randomization. e) reduce the variability in results.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Transcribed Image Text:**Question 14: Control Groups in Experiments**
Control groups are used in experiments in order to:
(a) Minimize the effects of variables that are not factors in the experiment on the outcome.
(b) Control the subjects of a study to ensure that all participate equally.
(c) Guarantee that someone other than the investigators, who have a vested interest in the outcome, controls how the experiment is conducted.
(d) Achieve a proper and uniform level of randomization.
(e) Reduce the variability in results.
**Explanation:**
Control groups are essential in experimental research as they help ensure the validity and reliability of the results. By minimizing the influence of external variables and providing a baseline for comparison, control groups play a critical role in distinguishing the actual effects of the experimental treatment.
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