Sampling Techniques and Experimental Design

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What is Sampling?

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Sampling is the process of selecting a subset of individuals from a population to estimate characteristics of the whole population.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

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What is a Census?

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A Census is the collection of data from every member of a population.

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CCSS.6.SP.B.5A

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What is Bias in sampling?

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Bias refers to systematic errors that lead to an inaccurate representation of the population.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

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What is Simple Random Sampling?

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Simple Random Sampling is a sampling method where every individual has an equal chance of being selected.

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CCSS.HSS.IC.B.3

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What is Systematic Sampling?

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Systematic Sampling involves selecting every nth individual from a list or sequence.

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CCSS.HSS.IC.B.3

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What is Stratified Sampling?

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Stratified Sampling involves dividing the population into subgroups and randomly sampling from each subgroup.

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CCSS.HSS.IC.B.3

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What is Cluster Sampling?

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Cluster Sampling involves dividing the population into clusters and randomly selecting entire clusters for the sample.

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CCSS.HSS.IC.B.3

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What is an Unbiased Question?

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An Unbiased Question is phrased in a neutral way that does not lead respondents to a particular answer.

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CCSS.RI.3.1

CCSS.RL.3.1

CCSS.RI.2.1

CCSS.RL.2.1

CCSS.RI.1.1

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What is a Leading Question?

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A Leading Question is phrased in a way that suggests a particular answer or influences the respondent's response.

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CCSS.RL.11-12.1

CCSS.RL.9-10.1

CCSS.RI.8.1

CCSS.RL.8.1

CCSS.RI.8.8

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What is the purpose of a Survey?

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The purpose of a survey is to collect data and insights from a group of individuals about their opinions, behaviors, or characteristics.