Sampling Techniques Quiz

What is a sample in research?

• A group of all individuals

• A subgroup of the target population

• A method of data collection

• A random selection of individuals

Which of the following is a characteristic of a good sample?

• It is biased

• It is representative of the population

• It is expensive

• It is time-consuming

What is the main advantage of using sampling techniques?

• It is always accurate

• It eliminates all errors

• It reduces the cost of observation

• It requires surveying the entire population

What type of sampling allows every member of the population a known chance of selection?

• Judgment sampling

• Convenience sampling

• Probability sampling

• Non-probability sampling

Which sampling method involves selecting every kth element from the population?

• Systematic sampling

• Convenience sampling

• Stratified sampling

• Cluster sampling

What is the purpose of stratified random sampling?

• To increase sample size

• To minimize costs

• To ensure representation of subgroups

• To select individuals randomly

In non-probability sampling, what is a key characteristic?

• All members have an equal chance of selection

• Selection is based on random methods

• Some members have no chance of selection

• It is always more accurate than probability sampling

What is convenience sampling?

• Selecting individuals based on specific criteria

• Selecting individuals from a random list

• Selecting individuals randomly from the population

• Selecting individuals who are easily accessible

What does the Cochran formula help determine?

• The population size

• The sample size for large populations

• The margin of error

• The confidence level

Which of the following is NOT a method of non-probability sampling?

• Quota sampling

• Stratified sampling

• Purposive sampling

• Snowball sampling