Understanding Sampling Methods Quiz

Which of the following is a characteristic of simple random sampling?

• Every member of the population has an equal chance of being selected.

• Members are selected based on specific characteristics.

• The population is divided into subgroups before sampling.

• Sampling is done based on convenience.

What is the main difference between stratified sampling and cluster sampling?

• Stratified sampling involves dividing the population into clusters, while cluster sampling involves dividing into strata.

• Stratified sampling involves selecting entire clusters, while cluster sampling involves selecting individuals from each stratum.

• Stratified sampling involves selecting individuals from each stratum, while cluster sampling involves selecting entire clusters.

• Both methods involve selecting individuals randomly from the entire population.

In which sampling method are participants selected based on their availability and willingness to take part?

• Systematic sampling

• Convenience sampling

• Stratified sampling

• Simple random sampling

Which of the following is an example of systematic sampling?

• Selecting every 10th person from a list of names.

• Randomly selecting names from a hat.

• Dividing a population into strata and sampling from each.

• Selecting individuals based on specific characteristics.

A researcher divides a population into males and females and then randomly selects individuals from each group. What type of sampling is this?

• Cluster sampling

• Stratified sampling

• Systematic sampling

• Convenience sampling

Which sampling method is most appropriate when the population is spread over a large geographic area and consists of naturally occurring groups?

• Simple random sampling

• Stratified sampling

• Cluster sampling

• Systematic sampling

If a researcher wants to ensure that every subgroup of a population is represented in the sample, which sampling method should they use?

• Simple random sampling

• Stratified sampling

• Cluster sampling

• Convenience sampling

Which of the following best describes random sampling?

• Selecting individuals based on specific criteria.

• Selecting individuals who are easiest to reach.

• Selecting individuals such that each has an equal probability of being chosen.

• Selecting individuals from pre-determined groups.

Researchers cannot generalize findings unless their samples are random. In order for a sample to be truly random, every member of the entire group has to have an equal chance of being chosen to participate. Which of the following is an example of a random sampling procedure used to pick 100 participants for a research project?

• Design a Web site that has an online version of a questionnaire and include the first 100 people who complete the survey.

• Put an ad in the newspaper and pick the first 100 people who respond.

• Choose participants from the entire population of interest by putting all the names in a bowl, picking names one at a time until you reach 100, and involving as many of those 100 as possible.

• Send questionnaires to the entire population of interest and include the first 100 people who return the questionnaire.

What is a sample?

• group of people who represent a larger population

• group of people with certain specific characteristics

• sample that accurately reflects the characteristics of the population as a whole

• All of the Above