Statistics Unit 3 Quiz 1

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Convenience sample

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9 Terms

1

Convenience sample

individuals in the sample are obtained by ‘proximity’ to the researcher

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2

Voluntary sample

individuals have the choice to be included in the sample

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3

Simple random sample (SRS)

each member of the population has an equal chance of being chosen for the sample

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4

Stratified random sample

the population is separated into groups (strata) and an SRS is collected for each of the strata

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5

Cluster sample

the population is separated into groups (clusters) and a RNG is used to select clusters where every individual in that cluster is sampled

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6

Systematic random sample

A RNG is used to select a random individual (starting point) in the population and every nth individual is selected afterwards

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7

Undercoverage

some people are less likely to be chosen

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8

Nonresponse

people can’t be reached or refuse to answer

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9

Response bias

problems in the data gathering instrument/process

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