Multi-Stage Sampling in Research

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What is the primary purpose of creating a sampling frame in cluster sampling?

To create a list of all clusters in the population (correct)
To randomly select individuals from the population
To identify the most representative clusters
To determine the optimal cluster size

What is a key consideration when determining the optimal cluster size in cluster sampling?

The size of the population being studied
The representativeness of the clusters in the population
The number of clusters required for statistical significance
The cost and time constraints of data collection (correct)

What is a potential disadvantage of cluster sampling if too few clusters are selected?

Reduced representativeness of the sample (correct)
Increased data collection costs
Increased sampling frame creation time
Increased complexity of data analysis

What is an advantage of cluster sampling in terms of data collection?

Reduced cost and time due to focused data collection (B) Signup and view all the answers

What is the primary difference between cluster sampling and multi-stage sampling?

The number of stages used to select individuals (D) Signup and view all the answers

What is the primary advantage of cluster sampling in terms of data collection?

Reduced costs and increased efficiency (A) Signup and view all the answers

In a multistage sampling design, what is the primary purpose of the initial stage?

To divide the population into smaller groups (D) Signup and view all the answers

What determines the sample size in cluster sampling?

The desired level of precision (C) Signup and view all the answers

What is the term for the list of all individuals in the population from which a sample is drawn?

Sampling frame (B) Signup and view all the answers

Which of the following is a characteristic of probabilistic sampling methods?

Equal probability of selection for all individuals (C) Signup and view all the answers

If the asthma database groups patients by doctor and lists patients of each doctor by severity, what could be a problem with using systematic sampling?

The sample might be skewed towards mild or severe asthma cases (C) Signup and view all the answers

What is an advantage of using proportional quota sampling over simple systematic sampling?

It ensures the original population structure (D) Signup and view all the answers

What is a potential disadvantage of using systematic sampling?

The sample may be skewed due to a hidden pattern in the list (D) Signup and view all the answers

What is an advantage of using proportional quota sampling compared to stratified random sampling?

It is an alternative approach when stratified random sampling is not possible (A) Signup and view all the answers

What is an advantage of using simple systematic sampling?

It is more convenient than probability sampling methods (A) Signup and view all the answers

What is a major concern when simple random sampling is used with a large and geographically diverse population?

It may be impractical to access lists of the full population. (A) Signup and view all the answers

What is the main advantage of simple random sampling in quantitative studies?

It ensures a representative sample from the source population. (C) Signup and view all the answers

In stratified random sampling, how is the size of the random sample determined?

It is proportional to the specific stratum size in the population. (C) Signup and view all the answers

What is the primary purpose of dividing a population into strata in stratified random sampling?

To divide the population into subgroups based on key demographic characteristics. (C) Signup and view all the answers

What is the main difference between simple random sampling and stratified random sampling?

The population is divided into subgroups in stratified random sampling. (A) Signup and view all the answers

What is a major advantage of multi-stage sampling over simple random sampling?

Improved sample representativeness (D) Signup and view all the answers

In systematic sampling, what is the primary concern that may lead to bias?

Pattern in the system of selection (C) Signup and view all the answers

What is a key consideration in determining the number of clusters to select in multi-stage sampling?

Cluster size and diversity (C) Signup and view all the answers

In cluster sampling, what can be a disadvantage of having too few clusters?

Compromised sample representativeness (A) Signup and view all the answers

What is a characteristic of systematic sampling that distinguishes it from simple random sampling?

Selection according to a systematic rule (B) Signup and view all the answers