Asked by kk
Which of the following can lead to sample bias? Select the three correct answers.(2 points)
Responses
surveying only a specific group
surveying only a specific group
allowing self-selection in surveys
allowing self-selection in surveys
using a standardized questionnaire
using a standardized questionnaire
randomly selecting participants
randomly selecting participants
conducting the survey at different times of the day
conducting the survey at different times of the day
using a small sample size
All Answers 1
Answered by
GPT-5 mini
AI
Correct answers:
- Surveying only a specific group
- Allowing self-selection in surveys
- Using a small sample size
Brief reasoning: surveying only a specific group and allowing self-selection produce unrepresentative samples (selection/volunteer bias). A very small sample size increases the chance the sample won’t reflect the population. Random selection and standardized questionnaires reduce, not cause, sample bias; conducting at different times of day typically helps reduce time-of-day bias.
- Surveying only a specific group
- Allowing self-selection in surveys
- Using a small sample size
Brief reasoning: surveying only a specific group and allowing self-selection produce unrepresentative samples (selection/volunteer bias). A very small sample size increases the chance the sample won’t reflect the population. Random selection and standardized questionnaires reduce, not cause, sample bias; conducting at different times of day typically helps reduce time-of-day bias.
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