Lesson 9.1.1

9.1.1 Data types, sampling and experimental designs Quiz: Pearson Edexcel Psychology, Unit 9

20 questions

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Lesson 9.1.1, Data types, sampling and experimental designs: 20 multiple choice questions for the Pearson Edexcel Psychology (9PS0), Unit 9: Psychological skills, written with Revision Ninja.

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The 20 questions

  1. Which type of data is expressed in numerical form?

    • Qualitative data
    • Primary data
    • Secondary data
    • Quantitative data

  2. Which type of data is collected directly by the researcher for the specific study being carried out?

    • Secondary data
    • Meta-data only
    • Archival data only
    • Primary data

  3. A researcher uses existing government census statistics in their study. What type of data is this?

    • Raw data
    • Secondary data
    • Qualitative data
    • Primary data

  4. In random sampling, what probability does each population member have of being selected?

    • High chance only
    • Unequal chance
    • Zero chance
    • Equal chance

  5. A school has 60 girls and 40 boys. A researcher wants a stratified sample of 20 pupils in the same proportions. How many girls should be selected?

    • 20
    • 8
    • 16
    • 12

  6. A researcher recruits whoever is available in the library at the time of the study. Which sampling technique is this?

    • Stratified sampling
    • Volunteer sampling
    • Opportunity sampling
    • Random sampling

  7. A researcher places a poster asking for volunteers for a study on memory. Which sampling technique is most likely used?

    • Volunteer sampling
    • Systematic sampling
    • Random sampling
    • Stratified sampling

  8. In an independent groups design, who performs each experimental condition?

    • Matched participants
    • The same participants
    • Self-selected participants
    • Different participants

  9. What is the primary advantage of a repeated measures design?

    • Eliminates fatigue effects
    • Prevents order effects
    • Controls participant variables
    • Requires more participants

  10. A researcher matches participants on IQ and then allocates one of each matched pair to each condition. Which design is this?

    • Repeated measures design
    • Matched pairs design
    • Opportunity sampling design
    • Case study design

  11. Which experimental design is most susceptible to order effects?

    • Single case
    • Independent groups
    • Repeated measures
    • Matched pairs

  12. What problem is directly reduced by using counterbalancing in an experiment?

    • Sampling bias
    • Demand characteristics
    • Order effects
    • Participant variables

  13. What term describes the loss of participants over time during a study?

    • Counterbalancing
    • Ethical bias
    • Social desirability
    • Attrition

  14. What is the main limitation of taking a sample from a single university?

    • Experimenter bias
    • Order effects
    • High attrition
    • Low generalisability

  15. In a memory experiment measuring word recall, which feature is quantitative data?

    • Number of words
    • Subjective feelings
    • Interview transcripts
    • Participant descriptions

  16. Which combination describes an experiment conducted in a natural setting with the researcher manipulating the independent variable?

    • Content analysis
    • Laboratory experiment
    • Case study
    • Field experiment

  17. What is the main advantage of random sampling compared to volunteer sampling?

    • Quicker to conduct
    • More representative
    • Zero sampling bias
    • Requires fewer people

  18. A researcher wants to compare the effects of two teaching methods, each taught to a different class. Which design is this?

    • Repeated measures design
    • Independent groups design
    • Single case study
    • Matched pairs design

  19. Which experimental design best controls for individual participant variables like age?

    • Repeated measures
    • Double blind
    • Independent groups
    • Single blind

  20. What is the main weakness of testing caffeine effects without a control group?

    • Low task difficulty
    • Small sample size
    • Uncontrolled extraneous variables
    • Qualitative data only

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