Types of Sampling & Levels of Measurement

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10 Terms

1
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Random Sampling

Each thing has the same chance of being selected.

2
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Simple Random Sampling

Has a requirement + not all sets have the same chance of being selected.

3
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Stratified Sample

Ex: Freshman, Sophomore, Junior, Senior, Grad

→ sample from each group.

4
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Cluster Sampling

West Davis, South Davis, East Davis, North Davis, Central Davis.

→ Randomly select clusters + All info from each cluster.

5
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Systematic Sample

Every “nth “ piece of data

6
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Convenient Sampling

Sample being drawn from part of the population that is close to hand

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Nominal

Categorize

→ Ex: eye color

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Ordinal

Categories that can be put in order

→ Ex: Letter Grades

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Interval

Categories that can be put in order and subtract values

→ Ex: Temperature *0 does not mean none

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Ratio

Categories that can be put in order and can subtract values, and determine if its a multiple of each other.

→ Ex: Exam Scores *0 means none