To Test a Hypothesis About a Given Variable, Experimental and Control

question 75

Multiple Choice

To test a hypothesis about a given variable, experimental and control groups are tested in parallel. Which of the following best explains the dual experiments?

• A)In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made.
• B)In the control group, a chosen variable is altered in a known way. In the experimental group that chosen variable is not altered so a comparison can be made.
• C)In the experimental group, a chosen variable plus all other variables are altered. In the control group, the chosen variable is altered however all other variables are held constant.
• D)In the experimental and control groups two different variables are altered.

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