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Questions and Answers
Which of the following best defines an independent variable?
What are independent variables also called?
Which of the following is NOT an example of an independent variable?
What is the purpose of estimating the extent to which an independent variable change can explain or predict changes in the dependent variable?
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How many main types of independent variables are there?
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Which of the following is an example of an independent variable?
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What is the definition of an independent variable?
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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?
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How many main types of independent variables are there?
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Which of the following best defines an independent variable?
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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.
