Lesson 1.2.3

1.2.3 Experimental designs Quiz: OCR Psychology, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 1.2.3, Experimental designs: 20 multiple choice questions for the OCR Psychology (H567), Unit 1: Research methods (Component 01), written with Revision Ninja.

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The 20 questions

  1. Which experimental design involves using the same participants in every condition of the experiment?

    • Single case
    • Repeated measures
    • Independent measures
    • Matched participants

  2. Which experimental design tests entirely different groups of participants in each experimental condition?

    • Independent measures
    • Observational design
    • Matched participants
    • Repeated measures

  3. Which design pairs participants on key characteristics before placing one in each condition?

    • Independent measures
    • Repeated measures
    • Matched participants
    • Single blind

  4. What is the primary limitation caused by participants taking part in multiple experimental conditions?

    • Ethical issues
    • Sampling bias
    • Order effects
    • Participant variables

  5. Which technique is used to control for order effects in a repeated measures design?

    • Random allocation
    • Standardisation
    • Counterbalancing
    • Double blind

  6. Performance declining in a second condition due to tiredness is known as what effect?

    • Pygmalion effect
    • Hawthorne effect
    • Practice effect
    • Fatigue effect

  7. Improvement in performance during a second trial due to familiarity is called what?

    • Halo effect
    • Fatigue effect
    • Practice effect
    • Placebo effect

  8. What major disadvantage affects independent measures designs due to using different people per group?

    • Fatigue effects
    • Order effects
    • Practice effects
    • Participant variables

  9. How are participants assigned to conditions in an independent measures design to reduce bias?

    • Counterbalancing
    • Stratified selection
    • Random allocation
    • Random sampling

  10. A researcher tests memory in Group A at 9am and Group B at 2pm. Which design is used?

    • Correlational design
    • Independent measures
    • Matched participants
    • Repeated measures

  11. Participants complete a driving simulation sober, then repeat it after consuming alcohol. Which design is this?

    • Matched participants
    • Repeated measures
    • Natural experiment
    • Independent measures

  12. Researchers match children by IQ before placing them into two separate reading intervention groups. Which design is this?

    • Independent measures
    • Matched participants
    • Repeated measures
    • Single case

  13. Which experimental design uses the exact same participants in every condition?

    • Opportunity sample
    • Independent measures
    • Repeated measures
    • Matched participants

  14. Which experimental design completely avoids order effects while controlling for individual participant differences?

    • Repeated measures
    • Independent measures
    • Observational design
    • Matched participants

  15. In a counterbalanced study with two conditions (A and B), what order does group two complete?

    • Condition A only
    • Condition A then B
    • Condition B then A
    • Condition B only

  16. Which experimental design is most susceptible to demand characteristics because participants see all conditions?

    • Independent measures
    • Naturalistic observation
    • Repeated measures
    • Matched participants

  17. What is a major practical drawback of using a matched participants design in psychological research?

    • Cannot use statistics
    • Time-consuming matching process
    • High order effects
    • Large demand characteristics

  18. One twin enters Condition A and the other enters Condition B. Which experimental design is used?

    • Repeated measures
    • Matched participants
    • Case study
    • Independent measures

  19. Which design ensures that individual differences like age or intelligence do not differ across conditions?

    • Unstructured design
    • Repeated measures
    • Independent measures
    • Overt observation

  20. Half of participants complete task X then Y, while half complete Y then X. Name this technique.

    • Randomisation
    • Standardisation
    • Counterbalancing
    • Operationalisation

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