Lesson 3.1.4.3.2

3.1.4.3.2 Random, opportunity, systematic and stratified sampling Quiz: AQA Psychology, Unit 4

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 3.1.4.3.2, Random, opportunity, systematic and stratified sampling: 20 multiple choice questions for the AQA GCSE Psychology (8182), Unit 4: Research methods, 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. In which sampling method does every population member have an equal chance of selection?

    • Stratified sampling
    • Random sampling
    • Systematic sampling
    • Opportunity sampling

  2. Which sampling method selects participants based on who is available at the time?

    • Systematic sampling
    • Stratified sampling
    • Opportunity sampling
    • Random sampling

  3. Selecting every nth person from a target population list describes which sampling method?

    • Random sampling
    • Stratified sampling
    • Opportunity sampling
    • Systematic sampling

  4. Which sampling method selects participants in proportion to key subgroups in the population?

    • Opportunity sampling
    • Systematic sampling
    • Stratified sampling
    • Random sampling

  5. A researcher writes each student's name on a card and draws 20 names from a bag. Which sampling method is this?

    • Systematic sampling
    • Opportunity sampling
    • Random sampling
    • Stratified sampling

  6. A researcher recruits the first 30 people who walk past the library entrance. Which method is this?

    • Stratified sampling
    • Opportunity sampling
    • Random sampling
    • Systematic sampling

  7. A researcher selects every 5th name from a school register of 500 pupils. Which method is this?

    • Stratified sampling
    • Random sampling
    • Systematic sampling
    • Opportunity sampling

  8. A school has 60 per cent girls and 40 per cent boys. A researcher wants a sample of 50 with the same proportions. Which method is this?

    • Opportunity sampling
    • Random sampling
    • Systematic sampling
    • Stratified sampling

  9. Which method is most likely to give each member of the population an equal chance of being selected?

    • Opportunity sampling
    • Systematic sampling
    • Random sampling
    • Stratified sampling

  10. Which method is the quickest and cheapest but most likely to be biased?

    • Systematic sampling
    • Opportunity sampling
    • Random sampling
    • Stratified sampling

  11. A researcher wants a sample that reflects the age groups of the population. Which method best achieves this?

    • Systematic sampling
    • Random sampling
    • Opportunity sampling
    • Stratified sampling

  12. Which sampling method uses a list and a fixed interval to pick participants?

    • Stratified sampling
    • Random sampling
    • Systematic sampling
    • Opportunity sampling

  13. What is a major advantage of using random sampling instead of opportunity sampling?

    • Less researcher bias
    • Smaller sample needed
    • Faster data collection
    • Lower financial cost

  14. A researcher selects every 10th name from a school register. Which sampling method is used?

    • Systematic sampling
    • Opportunity sampling
    • Random sampling
    • Stratified sampling

  15. A researcher wants to be sure that women and men are both included in equal numbers. Which method is best?

    • Random sampling
    • Opportunity sampling
    • Stratified sampling
    • Systematic sampling

  16. What is the main benefit of using a random number generator to select participants?

    • Eliminates demand characteristics
    • Requires no list
    • Guarantees full participation
    • Reduces researcher bias

  17. Which sampling method is best suited for a quick, convenient pilot study?

    • Systematic sampling
    • Stratified sampling
    • Random sampling
    • Opportunity sampling

  18. Which sampling method ensures subgroups in the sample match proportions in the population?

    • Opportunity sampling
    • Systematic sampling
    • Random sampling
    • Stratified sampling

  19. Which method requires the researcher to know the proportions of subgroups in the population first?

    • Stratified sampling
    • Random sampling
    • Opportunity sampling
    • Systematic sampling

  20. A researcher picks participants from a shopping centre by approaching people who look willing to help. Which method is this?

    • Systematic sampling
    • Opportunity sampling
    • Random sampling
    • Stratified sampling

All AQA Psychology quizzes