Podcast
Questions and Answers
What method of sampling is used when obtaining a list of all seventh graders and collecting data from a subset of schools?
What method of sampling is used when obtaining a list of all seventh graders and collecting data from a subset of schools?
- Quota sampling
- Convenient sampling
- Cluster sampling (correct)
- Stratified random sampling
What is an advantage of cluster sampling over other methods for obtaining information?
What is an advantage of cluster sampling over other methods for obtaining information?
- Guarantees representation of all population elements
- Provides a high degree of generalizability
- Eliminates the need for an expert to balance cluster selection
- Cost-effectiveness for selecting subjects based on proximity (correct)
In cluster sampling, what is a disadvantage related to selecting between many small clusters or few large clusters?
In cluster sampling, what is a disadvantage related to selecting between many small clusters or few large clusters?
- Increased representativeness at a higher cost
- Economic efficiency with low variability control (correct)
- Lack of consideration for proximity in selecting clusters
- High variability control with lower economic efficiency
What type of sampling involves selecting subjects based on convenient accessibility and proximity to the researcher?
What type of sampling involves selecting subjects based on convenient accessibility and proximity to the researcher?
What is a disadvantage of using convenient sampling as a method of data collection?
What is a disadvantage of using convenient sampling as a method of data collection?
Which type of sampling ensures some degree of representativeness by selecting people according to certain fixed quotas?
Which type of sampling ensures some degree of representativeness by selecting people according to certain fixed quotas?
What is the main advantage of using a stratified random sample over a simple random sample?
What is the main advantage of using a stratified random sample over a simple random sample?
What is the main disadvantage of using a stratified random sample?
What is the main disadvantage of using a stratified random sample?
In a stratified random sample, how are the population elements separated into groups?
In a stratified random sample, how are the population elements separated into groups?
Which of the following is a type of probability sampling method?
Which of the following is a type of probability sampling method?
What is the key characteristic of a systematic random sample?
What is the key characteristic of a systematic random sample?
Which of the following is a potential disadvantage of a systematic random sample?
Which of the following is a potential disadvantage of a systematic random sample?
What is a stratified random sample?
What is a stratified random sample?
Why may stratified random sampling produce a smaller bound on the error of estimation compared to simple random sampling (SRS)?
Why may stratified random sampling produce a smaller bound on the error of estimation compared to simple random sampling (SRS)?
What is one disadvantage of stratified random sampling compared to simple random sampling (SRS)?
What is one disadvantage of stratified random sampling compared to simple random sampling (SRS)?
What is a clustered random sample?
What is a clustered random sample?
How are clusters selected in a clustered random sample?
How are clusters selected in a clustered random sample?
What can be an example of a cluster in clustered random sampling?
What can be an example of a cluster in clustered random sampling?
