Samples and Sampling methods Flashcards

1
Q

What is a Target Population?

A

A group of people the psychologists want to be able to GENERALISE their findings to

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2
Q

What is Sampling?

A

The process of selecting participants from the population.

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3
Q

What are the four methods of getting a sample?

A

1)Opportunity
2)Volunteer
3)Random
4)Snowball

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4
Q

What is Opportunity sampling?

A

Where you select participants who are READILY AVAILABLE to you.

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5
Q

Name an advantage of opportunity sampling.

A

It’s the easiest ,quickest and most economical way to obtain participants.

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6
Q

Name a disadvantage of opportunity sampling.

A

it can be very bias and unrepresentative

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7
Q

What is volunteer sampling?

A

Where an advert is put up and people interested would reply to the advert.

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8
Q

Name an advantage of volunteer sampling.

A

Wide range of access to potential participants

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9
Q

Name a disadvantage for volunteer sampling.

A

Bias sample
Demand characteristics

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10
Q

What is Random sampling?

A

Where every member of the target population has a equal chance of being selected out of a draw.

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11
Q

Name an advantage of random sampling

A

Least bias
equal chance of being selected

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12
Q

Name one weakness of random sampling.

A

Difficult and time consuming to do
Some may refuse to participate

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13
Q

What is snowball sampling?

A

Where a participant suggests to another person who might be willing or appropriate for the study

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14
Q

What type of target population might we use snowball sampling for?

A

Hard to get to target populations

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15
Q

Name an advantage of snowball sampling

A

No lists or identifiable clusters even exist

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16
Q

Name a disadvantage of snowball sampling.

A

No way of knowing if sample is representative of population