Lesson 3.1.4.6.2

3.1.4.6.2 Extraneous variables and how to control for them Quiz: AQA Psychology, Unit 4

20 questions

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Lesson 3.1.4.6.2, Extraneous variables and how to control for them: 20 multiple choice questions for the AQA GCSE Psychology (8182), Unit 4: Research methods, written with Revision Ninja.

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The 20 questions

  1. What is any unwanted variable, other than the independent variable, that may affect results?

    • Extraneous variable
    • Confounding variable
    • Control variable
    • Dependent variable

  2. In a memory experiment, which of the following is an example of an extraneous variable?

    • Background noise
    • Number recalled
    • Independent variable
    • Word list length

  3. Which procedure controls situational variables by keeping testing conditions identical for all participants?

    • Random allocation
    • Randomisation
    • Counterbalancing
    • Standardisation

  4. How does random allocation control participant variables in an experiment?

    • Controls situational factors
    • Standardises instructions
    • Eliminates fatigue
    • Evenly distributes differences

  5. Which extraneous variable is directly controlled using counterbalancing in a repeated measures design?

    • Investigator effects
    • Order effects
    • Situational variables
    • Participant variables

  6. Testing participants at 9 am and 4 pm introduces which type of extraneous variable?

    • Participant variable
    • Demand characteristic
    • Investigator effect
    • Situational variable

  7. Testing one group in a noisy room and another in a quiet room introduces what?

    • Demand characteristic
    • Situational variable
    • Participant variable
    • Order effect

  8. Which technique best controls for participant fatigue across multiple conditions?

    • Standardisation
    • Counterbalancing
    • Random allocation
    • Single-blind design

  9. Why do psychologists aim to control extraneous variables in an experiment?

    • Reduce ethical issues
    • Increase sample size
    • Improve qualitative data
    • Establish cause-and-effect

  10. Differences in participants' sleep levels before a test represent which type of variable?

    • Independent variable
    • Dependent variable
    • Situational variable
    • Participant variable

  11. Which experimental design feature helps control participant variables in an independent groups design?

    • Counterbalancing
    • Random allocation
    • Standardised instructions
    • Repeated testing

  12. Revealing the study's hypothesis to participants before testing risks creating what?

    • Demand characteristics
    • Investigator bias
    • Situational variables
    • Order effects

  13. Different experimenters using varied timing styles across groups introduces what extraneous variable?

    • Investigator effect
    • Participant variable
    • Demand characteristic
    • Order effect

  14. Comparing test scores between a well-lit room and a dim room introduces what?

    • Order effect
    • Participant variable
    • Situational variable
    • Demand characteristic

  15. How do uncontrolled extraneous variables affect the internal validity of an experiment?

    • They simplify results
    • They reduce validity
    • They improve reliability
    • They increase validity

  16. Which method controls for specific participant variables like IQ in an independent groups design?

    • Repeated measures design
    • Single-blind design
    • Matched pairs design
    • Counterbalancing

  17. What is the main benefit of strictly controlling extraneous variables in a lab?

    • High ecological validity
    • High mundane realism
    • Zero demand characteristics
    • High internal validity

  18. What technique controls experimenter effects by ensuring all participants receive identical instructions?

    • Counterbalancing
    • Matched pairs
    • Standardised instructions
    • Randomisation

  19. What is a key limitation of using a matched pairs experimental design?

    • Participant variables remain
    • Demand characteristics
    • High order effects
    • Low ecological validity

  20. Which technique is used specifically to control order effects in repeated measures designs?

    • Standardisation
    • Counterbalancing
    • Randomisation
    • Stratification

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