Master Research Methods and Study Design
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Questions and Answers

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?

  • 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?

  • Extraneous variable
  • Independent variable
  • Dependent variable (correct)
  • Control variable

    • What is the purpose of operationalizing variables in a study?

    <p>To specify what is meant by each variable</p> Signup and view all the answers

    Why is it important for the control group to be as similar as possible to the experimental group?

    <p>To rule out extraneous or confounding variables</p> Signup and view all the answers

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