Sampling and Bias Flashcard

Front

What is stratified sampling?

Back

A method of sampling where the population is divided into subgroups, or strata, and then samples are randomly selected from each stratum.

Front

What type of sampling method is used when a computer generates random identification numbers for a survey?

Back

Simple Random Sampling.

Front

What type of sampling method is used when a teacher selects the five closest students to her desk?

Back

Convenience.

Front

How is systematic sampling different from simple random sampling?

Back

Systematic sampling involves selecting every nth item from the population, while simple random sampling involves selecting items randomly without any specific pattern.

Front

What is response bias?

Back

A type of bias that occurs when the answers given by survey respondents do not accurately reflect their true beliefs or experiences.

Front

Define simple random sampling.

Back

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

Front

What is cluster sampling?

Back

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

Front

Explain voluntary response sampling.

Back

A sampling method where individuals choose to participate in the survey, often leading to biased results.

Front

What is the purpose of using stratified sampling?

Back

To ensure that specific subgroups within a population are adequately represented in the sample.

Front

Define convenience sampling.

Back

A sampling method where samples are taken from a group that is easily accessible.