Identifying independent, dependent, and extraneous variables

• What is the relationship between hours of sleep and test scores in the context of dependent and independent variables?

  Hours of sleep is the independent variable affecting test scores
• What is the definition of an independent variable?

  It is manipulated to see its effect.
• What are extraneous variables in an experiment?

  Factors other than the independent variable
• How is the dependent variable related to the independent variable?

  The dependent variable is affected by the independent variable
• What does the dependent variable represent in research?

  It represents the result or outcome being measured
• What is the dependent variable in an experiment?

  What you measure to see effects
• How does changing the independent variable affect the experiment?

  It allows observation of effects on other variables
• What is a dependent variable?

  What researchers measure to see effects
• What does an independent variable do in an experiment?

  It causes an effect on another variable.
• How is the independent variable defined in an experiment?

  It is the variable you change
• What is the independent variable in an experiment?

  The factor you manipulate or change
• How can researchers manage extraneous variables in their studies?

  By controlling the environment and participant selection
• What are the key features of independent and dependent variables?

  • Independent Variable:
  • Definition: Manipulated variable
  • Role: Causes an effect
  • Example: Hours spent studying
  • Dependent Variable:
  • Definition: Measured variable
  • Role: Reflects the effect
  • Example: Test grades
• In an experiment measuring test scores, what is the dependent variable?

  Test scores
• How do extraneous variables affect the dependent variable?

  They might confuse the results if uncontrolled
• What effect can participant mood have on a study?

  It can lead to anxiety before a test
• Why is the independent variable important in an experiment?

  It helps determine if it causes an effect
• How does a noisy room serve as an extraneous variable?

  It affects concentration during the experiment
• What is the independent variable in an experiment?

  What you change in an experiment
• How does increasing the independent variable affect the dependent variable?

  It might improve the dependent variable
• Why is it important to control extraneous variables in an experiment?

  To ensure accurate and reliable results
• What is the relationship between independent and dependent variables in an experiment?

  The independent variable causes changes in the dependent variable
• How does the dependent variable relate to the independent variable?

  It shows the outcome affected by the independent variable
• How do independent variables relate to dependent variables in research?

  Independent variables influence the outcome of dependent variables.
• If you change the hours spent studying, what variable are you manipulating?

  Independent variable
• What is researcher bias in the context of extraneous variables?

  Favoring certain participants in the study
• What does the dependent variable reflect in an experiment?

  The effect caused by the independent variable
• Why are extraneous variables a concern in experiments?

  They can confuse the results if not managed
• What is the relationship between study hours and test grades in this context?

  Study hours are the independent variable affecting test grades
• If you increase study hours, what might happen to test grades?

  Test grades might improve
• What are extraneous variables in an experiment?

  Uncontrolled factors affecting the dependent variable