Lesson 1d.03

1d.03 Determine factors that may lead to bias, including issues of sensitivity of the... Quiz: Pearson Edexcel Statistics, Unit 1

20 questions

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Lesson 1d.03, Determine factors that may lead to bias, including issues of sensitivity of the...: 20 multiple choice questions for the Pearson Edexcel GCSE Statistics (1ST0), Unit 1: The collection of data, written with Revision Ninja.

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The 20 questions

  1. What is the main purpose of using the random response technique in surveys?

    • Improving data cleaning
    • Increasing sample size
    • Eliminating outliers
    • Reducing dishonest answers

  2. Which factor is most likely to cause untruthful responses when asking about illegal behaviour?

    • Sample size
    • Interviewer gender
    • Data cleaning
    • Question sensitivity

  3. What does minimising data distortion primarily involve during planning?

    • Controlling collection conditions
    • Deleting missing values
    • Increasing question length
    • Using smaller samples

  4. Which error arises when different interviewers ask survey questions in different ways?

    • Response error
    • Processing error
    • Sampling error
    • Interviewer bias

  5. Why must environmental conditions be kept consistent during experimental data collection?

    • To prevent distortion
    • To reduce sample size
    • To create outliers
    • To increase bias

  6. Which technique uses a random device, such as a coin, so the interviewer cannot tell a respondent's true answer?

    • Random response technique
    • Stratified sampling
    • Systematic sampling
    • Judgement sampling method

  7. Why might respondents give inaccurate figures when asked about their personal income?

    • Content is sensitive
    • Questions are closed
    • Sample size is small
    • Data is secondary

  8. Which issue is a direct source of bias during data collection interviews?

    • Random sampling
    • Pilot testing
    • Leading questions
    • Data cleaning

  9. What is the primary purpose of the random response technique?

    • Increasing sample size
    • Removing all outliers
    • Protecting privacy
    • Speeding up analysis

  10. An interviewer's tone changes between interviews. What type of bias is this?

    • Census error
    • Sampling frame bias
    • Interviewer bias
    • Quota bias

  11. What bias issue arises from asking sensitive questions with low privacy?

    • Sampling error
    • Distorted responses
    • Transcription fault
    • Data cleansing

  12. Which factor most threatens validity when asking personal questions in front of family?

    • Topic sensitivity
    • Measurement scale
    • Sample size
    • Data cleaning

  13. Which method best minimises bias when collecting data on personal salaries?

    • Public phone surveys
    • Anonymous questionnaires
    • Face-to-face interviews
    • Named response sheets

  14. Allowing different participants to complete a test in completely different environments causes what?

    • Data cleaning
    • Stratified sampling
    • Randomisation
    • Poor control

  15. Which feature of data collection best reassures respondents worried about privacy?

    • Open questioning
    • Named tracking
    • Public publishing
    • Guaranteed anonymity

  16. In a survey on a sensitive behaviour, a coin decides the answer: heads means answer truthfully and tails means answer 'no'. 30% answer yes. What is the estimated true proportion?

    • 60%
    • 45%
    • 30%
    • 15%

  17. Which design choice best reduces bias when surveying students about cheating?

    • Open questioning
    • Randomised response
    • Named interviews
    • Leading questions

  18. Why must extraneous variables like time of day be controlled across experimental groups?

    • To prevent bias
    • To increase cost
    • To shorten surveys
    • To reduce data

  19. Which error often arises from sensitive questionnaire content?

    • Arithmetic miscalculation
    • Transcription delay
    • Random number generation
    • Socially desirable answers

  20. Measuring two test groups at different room temperatures introduces what type of issue?

    • Random error
    • Closed question
    • Extraneous variable
    • Sample quota

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