Unit 3 - Design of a Study - Sampling Methods - Bias

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What is a Representative Sample?

Back

A sample that has the essential characteristics of the population being studied and is free of any type of bias.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Wording Bias?

Back

When the wording of the question itself influences the response in a systematic way.

Tags

CCSS.RL.5.6

Front

What is a Confounding Variable?

Back

A variable that has an effect on the outcomes of the study but whose effects cannot be separated from those of the treatment variable.

Front

What is a Census?

Back

A procedure by which every member of the population is selected for a study.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is Quota Sampling?

Back

A method where the pollster attempts to generate a representative sample by choosing sample members based on matching individual characteristics to known characteristics of the population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Sampling Bias?

Back

A bias that occurs when the sample is not representative of the population from which it is drawn.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Nonresponse Bias?

Back

A bias that occurs when individuals selected for the sample do not respond, leading to a sample that may not represent the population.

Tags

CCSS.HSS.IC.B.3

Front

What is a Stratified Sample?

Back

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

Tags

CCSS.HSS.IC.B.3

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What is a Cluster Sample?

Back

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

Tags

CCSS.HSS.IC.B.3

Front

What is a Systematic Sample?

Back

A sampling method where members of the population are selected at regular intervals.

Tags

CCSS.HSS.IC.B.3