Which of these are found in experimental investigations, but not in descriptive investigations? Check all that apply.

- a question
- a hypothesis
- variables
- a control group
- a procedure
- a conclusion



Answer :

Final answer:

Variables, a control group, and a procedure are unique to experimental investigations.


Explanation:

Variables, a control group, and a procedure are found in experimental investigations but not in descriptive investigations. In an experimental investigation, variables are manipulated and controlled to observe their effects, a control group provides a baseline for comparison, and a procedure outlines the steps followed in the experiment.


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