Sampling Flashcards by elle ewens | Brainscape

Q

Opportunity

A

Most convenient or available

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Q

Random

A

Randomly selected

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Q

Stratified

A

Subgroups reflecting real population

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Q

Systematic

A

System picked 2.g. every third person

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Q

Volunteer

A

When they are volunteers

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Q

Opportunity: Strengths

A

Easy and quick

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Q

Opportunity: Weaknesses

A

Can be biased (same types of people)

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Q

Random strengths

A

Unbiased

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Q

Random weakness

A

Long time

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Q

Stratified: strength

A

Objective, unbiased

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Q

Stratified: weakness

A

Not completely unbiased

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Q

Volunteer: Strengths

A

Access to lots of different people

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Q

Volunteer; Weakness

A

More motivated as they asked for it - volunteer bias

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