Independent and Dependent Variables Quiz
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Questions and Answers

Which of the following best defines an independent variable?

  • A variable that is manipulated or varied in an experimental study (correct)
  • A variable that is influenced by other variables in a study
  • A variable that is measured in a study
  • A variable that is used to estimate changes in other variables

    • What are independent variables also called?

  • Confounding variables
  • Dependent variables
  • Experimental variables (correct)
  • Control variables

    • Which of the following is NOT an example of an independent variable?

  • Age
  • Temperature
  • Height
  • Test scores (correct)

    • What is the purpose of estimating the extent to which an independent variable change can explain or predict changes in the dependent variable?

    <p>To establish a cause-and-effect relationship</p> Signup and view all the answers

    How many main types of independent variables are there?

    <p>Two</p> Signup and view all the answers

    Which of the following is an example of an independent variable?

    <p>Temperature</p> Signup and view all the answers

    What is the definition of an independent variable?

    <p>A variable that is not influenced by any other variables in the study</p> Signup and view all the answers

    Which term is used in statistics to estimate the extent to which an independent variable change can explain or predict changes in the dependent variable?

    <p>Regression coefficient</p> Signup and view all the answers

    How many main types of independent variables are there?

    <p>Two</p> Signup and view all the answers

    Which of the following best defines an independent variable?

    <p>A variable that is manipulated or varied in an experimental study</p> Signup and view all the answers

    Study Notes

    Independent Variables

    • An independent variable is a variable that is intentionally changed or manipulated by the researcher to observe its effect on the dependent variable.
    • Independent variables are also called predictor variables or explanatory variables.
    • A variable that is not intentionally changed or manipulated by the researcher, but rather is a characteristic of the participants, is NOT an example of an independent variable.

    Purpose of Independent Variables

    • The purpose of estimating the extent to which an independent variable change can explain or predict changes in the dependent variable is to establish cause-and-effect relationships.

    Types of Independent Variables

    • There are two main types of independent variables: • Manipulated independent variables: intentionally changed by the researcher • Non-manipulated independent variables: characteristics of participants, not changed by the researcher

    Coefficient of Determination

    • The coefficient of determination (R²) is the term used in statistics to estimate the extent to which an independent variable change can explain or predict changes in the dependent variable.

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    Description

    Test your knowledge on independent and dependent variables with this quiz. Learn the definitions and examples of these key research components.

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