Sampling and Bias Quick Review

Front

What is the set of ALL observations made on all objects under study for a given characteristic or variable?

Back

Population

Front

What sampling method involves surveying every 25th guest as they leave a restaurant?

Back

Systematic Sampling

Front

What is a set of observations that constitute PART of the population?

Back

Sample

Front

Why is a sample of English teachers biased if it doesn't include students?

Back

The sample didn't include students.

Front

What is the source of bias that occurs when an individual chosen for the sample can't be contacted or refuses to cooperate?

Back

Nonresponse

Front

What is the term for a complete enumeration of a population?

Back

Census

Front

What type of sampling involves selecting individuals based on convenience rather than randomness?

Back

Convenience Sampling

Front

What is the bias that occurs when respondents have the option to choose whether or not to participate in a survey?

Back

Voluntary Response Bias

Front

What is the term for the difference between the sample statistic and the actual population parameter?

Back

Sampling Error

Front

What is the term for a sample that does not accurately represent the population?

Back

Biased Sample