Sampling Flashcards

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1
Q

What is sampling

A

A small group of people selected from a population

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2
Q

What are the types of sampling

A

Opportunity, random, stratified, systematic and volunteer

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3
Q

Discuss opportunity sample

A

Recruiting those easily available

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4
Q

Discuss random sampling

A

Use a random technique for example the lottery method or random number generator

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5
Q

Discuss stratified sample

A

Identify relevant subgroups, randomly select appropriate portion from each subgroup

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6
Q

Discuss systematic sample

A

Select every nth person

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7
Q

Discuss a volunteer sample

A

People respond to an advertisement

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8
Q

Evaluate opportunity sample

A

They are easy because they are there but biased

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9
Q

Evaluate random sample

A

Unbiased but takes time

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10
Q

Evaluate stratified sample

A

Proportional, representative and on biased, but time-consuming

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11
Q

Evaluate systematic sample

A

Unbiased but not truly random

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12
Q

Evaluate volunteer sample

A

Variety of participants, but volunteer bias

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