Exploring Sampling Methods in Depth

The video covers various sampling methods, including systematic, cluster, and stratified random sampling. It explains each method with examples, discusses their pros and cons, and provides practice scenarios to reinforce learning.

What is the main purpose of sampling in research?

• To increase the population size

• To study the entire population

• To take a smaller subset of the population

• To avoid studying the population

Which sampling method involves selecting every nth member of the population?

• Simple Random Sampling

• Voluntary Response Sampling

• Systematic Sampling

• Convenience Sampling

What is a key advantage of systematic sampling over convenience sampling?

• It is less representative

• It is more representative

• It is easier to execute

• It requires no rules

In cluster sampling, how are the members of the population selected?

• Based on convenience

• From specific clusters or groups

• Through voluntary response

• Randomly from the entire population

What is a potential drawback of cluster sampling if the clusters are homogeneous?

• It requires too many participants

• It may not be representative of the population

• It is too time-consuming

• It is too expensive

How does stratified random sampling ensure representation?

• By selecting every nth member

• By selecting entire clusters

• By dividing the population into strata and sampling within each stratum

• By using convenience sampling

What is a key difference between cluster sampling and stratified random sampling?

• Cluster sampling is easier to execute than stratified sampling

• Cluster sampling is more representative than stratified sampling

• Cluster sampling selects entire groups, while stratified sampling selects individuals within groups

• Stratified sampling selects entire groups, while cluster sampling selects individuals within groups

Why might stratified random sampling be more complex to execute than other methods?

• It is less representative

• It requires no prior knowledge of the population

• It involves multiple steps and careful consideration of characteristics

• It is more time-consuming

If a school is divided by floors and everyone on the second floor is sampled, which method is being used?

• Convenience Sampling

• Stratified Random Sampling

• Cluster Sampling

• Systematic Sampling

When a list of names is used and every 15th name is selected, which sampling method is this?

• Systematic Sampling

• Voluntary Response Sampling

• Stratified Random Sampling

• Cluster Sampling