Extraneous variables

• What are extraneous variables?

  Variables not controlled that affect the DV
• Why are extraneous variables an issue in experiments?

  They can make results unreliable if unaccounted
• How does temperature act as an extraneous variable?

  It can influence the results if uncontrolled
• How does time of day affect experimental results?

  It can impact results if not controlled
• In what way can weather be an extraneous variable?

  It can alter results if not accounted for
• How does noise serve as an extraneous variable?

  It can distract and affect the results
• Why is location considered an extraneous variable?

  It can influence results if not controlled
• What is the overall impact of not controlling extraneous variables?

  Results may be unreliable and invalid