Answer to Question #110037 in Statistics and Probability for This website is good

Question

Which of the following sampling techniques would most likely result in a non-response bias?
- Cluster Sampling
- Systematic Sampling
- Simple Random Sampling
- Stratified Sampling
- Voluntary Sampling

Answer 1

Non-response bias can occur when subjects who refuse to take part in a study, or who drop out before the study can be completed, are systematically different from those who participate.

So, Voluntary Sampling is most likely result in a non-response bias because some important part of people may choose not to participate.