Lesson 2.6.2

2.6.2 Methodological issues in core studies Quiz: OCR Psychology, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 2.6.2, Methodological issues in core studies: 20 multiple choice questions for the OCR Psychology (H567), Unit 2: Psychological themes through core studies (Component 02), written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. Which sampling technique was used to select participants for Loftus and Palmer's first eyewitness study?

    • Opportunity sample
    • Random sample
    • Self-selected sample
    • Stratified sample

  2. What major ethical issue was violated by Milgram regarding participants wishing to withdraw?

    • Right to withdraw
    • Confidentiality
    • Informed consent
    • Protection from harm

  3. Why is quantitative data gathered by questionnaires often criticised in psychological core studies?

    • Lacks depth
    • Lacks reliability
    • High researcher bias
    • Subjective scoring

  4. Which core study relied heavily on self-report data through dreams and journals?

    • Milgram
    • Dement and Kleitman
    • Sperry
    • Bane

  5. What potential extraneous variable was introduced by using independent measures in Hancock's psychopath study?

    • Participant variables
    • Order effects
    • Investigator effects
    • Demand characteristics

  6. If a researcher consistently misinterprets drawings in a projective test, what type of error is occurring?

    • Observer bias
    • Sampling bias
    • Attrition bias
    • Response bias

  7. A participant guesses the aim of a memory test and alters their performance. What issue is this?

    • Demand characteristics
    • Social desirability
    • Experimenter bias
    • Order effects

  8. Calculate the percentage change if a study's sample size drops from 40 to 30 participants due to dropouts.

    • 33% decrease
    • 20% decrease
    • 25% decrease
    • 10% decrease

  9. If a split-half reliability test yields a correlation coefficient of 0.85, what does this indicate?

    • Low internal validity
    • Low test-retest reliability
    • High internal reliability
    • High ecological validity

  10. Which sampling bias is most likely when recruiting participants via an online psychology forum?

    • Volunteer bias
    • Random bias
    • Stratified bias
    • Opportunity bias

  11. Why might a longitudinal study like Freuds Little Hans suffer from participant attrition over time?

    • Fatigue effects
    • Drop out
    • Order effects
    • Practice effects

  12. What primary methodological limitation exists when studying split-brain patients due to rare samples?

    • Large attrition rate
    • High investigator bias
    • Small sample size
    • Poor standardisation

  13. Which control measure reduces order effects in a repeated measures experimental design?

    • Standardisation
    • Counterbalancing
    • Randomisation
    • Single blinding

  14. What key issue arises when converting qualitative descriptions of emotions into quantitative scores?

    • Sampling error
    • Lack of standardisation
    • Subjective interpretation
    • Low reliability

  15. If a study measures happiness using a flawed questionnaire that actually assesses stress, it lacks what?

    • Ecological validity
    • External reliability
    • Population validity
    • Construct validity

  16. How does using a double-blind design directly improve the methodological quality of a clinical trial?

    • Reduces researcher bias
    • Enhances realism
    • Eliminates attrition
    • Improves sample size

  17. Which core study used a matched pairs design to control for participant variables?

    • Bandura et al.
    • Loftus and Palmer
    • Piliavin et al.
    • Milgram

  18. A researcher fails to standardise the room temperature across testing sessions. What term describes this error?

    • Demand characteristic
    • Extraneous variable
    • Participant variable
    • Confounding variable

  19. Calculate the percentage drop in a sample if 50 participants start a longitudinal study and 10 withdraw.

    • 10%
    • 40%
    • 20%
    • 25%

  20. What primary methodological limitation occurs when using snapshot studies to investigate developmental psychology?

    • Experimenter bias
    • Order effects
    • Individual differences
    • Demand characteristics

All OCR Psychology quizzes