Sampling Methods Quiz

Probability sampling ensures that ________.

• Each unit in the population has an equal chance of being selected

• The sample is chosen based on the researcher's convenience

• Only specific subgroups are included in the sample

• The sample size is always very large

Which of the following is a type of non - probability sampling?

• Simple random sample

• Stratified sample

• Convenience sampling

• Systematic sample

The main problem with non - probability sampling in terms of generalizability is that ________.

• The sample is too small

• The sample may not represent the entire population

• It is too expensive

• It takes too much time

In exploratory research, non - probability sampling is often used because ________.

• It provides highly representative samples

• It can help gain initial insights to form better research questions

• It is very cost - effective for large - scale studies

• It ensures random selection

Which sampling method is most likely to have selection bias?

• Simple random sampling

• Stratified random sampling

• Judgmental sampling

• Cluster sampling

Probability sampling always results in a sample that perfectly represents the population.

Snowball sampling is a type of probability sampling.

Non - probability sampling can be useful when researching hard - to - reach populations.

Selection bias is not a concern in probability sampling.

The central limit theorem suggests that for probability sampling, sample sizes must be more than 30 for good results.