Sampling Methods Summative

Front

What is a Voluntary Sample?

Back

A sampling method where individuals choose to participate in a survey or study, often leading to bias as only those with strong opinions may respond.

Front

Define Stratified Random Sample.

Back

A sampling method where the population is divided into subgroups (strata) and random samples are taken from each stratum to ensure representation.

Front

What is Response Bias?

Back

A type of bias that occurs when respondents provide inaccurate answers due to the wording of questions or other influences.

Front

Explain Systematic Sample.

Back

A sampling method where every nth individual is selected from a list or sequence, starting from a random point.

Front

What is a Simple Random Sample (SRS)?

Back

A sampling method where every individual in the population has an equal chance of being selected.

Front

Define Cluster Sample.

Back

A sampling method where the population is divided into clusters, and entire clusters are randomly selected for the study.

Front

What is Nonresponse Bias?

Back

A bias that occurs when individuals selected for the sample do not respond, potentially skewing the results.

Front

Explain Undercoverage Bias.

Back

A bias that occurs when some members of the population are inadequately represented in the sample.

Front

What is Wording Bias?

Back

A bias that occurs when the phrasing of survey questions influences the responses given by participants.

Front

Describe the importance of random sampling.

Back

Random sampling helps ensure that the sample is representative of the population, reducing bias and increasing the validity of results.