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Questions and Answers
Which of the following is a key characteristic of a good experimental design?
Which of the following is a key characteristic of a good experimental design?
- Extraneous variables
- Reproducibility (correct)
- Placebo effect
- Qualitative variables
What is the purpose of selecting a control group in an experiment?
What is the purpose of selecting a control group in an experiment?
- To manipulate the independent variable
- To act as a point of reference and comparison (correct)
- To rule out extraneous or confounding variables
- To measure the dependent variable
Which type of variable must be quantitative (numerical) in an experiment?
Which type of variable must be quantitative (numerical) in an experiment?
- Extraneous variable
- Independent variable
- Dependent variable (correct)
- Control variable
What is the purpose of operationalizing variables in a study?
What is the purpose of operationalizing variables in a study?
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Why is it important for the control group to be as similar as possible to the experimental group?
Why is it important for the control group to be as similar as possible to the experimental group?
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