1. Why is sampling needed to conduct a research? And what are the goals of sampling?
2. What does each of the following terminologies mean: population, sample, element, sampling frame, statistic, parameter, representative sample, sampling error, non-sampling error and census?
3. What is the significance of sampling error for achieving a representative sample?
4. What is probability sampling and what are main probability sample techniques? Explain and give an example of each technique.
5. How to decide a sample size when probability sampling is used?
6. What is non-probability sampling and what are main non-probability sample techniques? Explain and give an example of each technique.
7. What are main types of sampling in qualitative researches? And are they similar to non-probability sampling in quantitative researches?
8. According to your research questions, make your sampling design and share it with your classmates.

sampling.ppt