Ch: 6 Sampling Flashcards

(20 cards)

1
Q

A group of individuals a researcher seeks to learn about from a research study

A

population

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2
Q

the group of individuals chosen from the population to represent it in a research study

A

sample

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3
Q

difference in scores from the population to the sample

A

Sampling error

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4
Q

sample chosen such that individuals are chosen w/a specific probability

A

Probability Sample

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5
Q

Individuals are chosen at non-randomly from the population such that available individuals are chosen and the chance of any one individual being selected is not known.

A

Convenience (Purposive) Sample

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6
Q

Sample chosen randomly from the pop. such that each individual has an equal chance of being selected

A

Simple Random Sample

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7
Q

sample chosen randomly from clusters identified in the population

A

cluster sample

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8
Q

Sample chosen from the population such that the proportion of individuals w/a particular characteristic is equivalent in the population and the sample

A

Stratified Random Sample

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9
Q

the degree to which a study provides causal info about behavior

A

Internal Validity

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10
Q

the degree to which the results of a study apply to individuals and realistic behaviors outside the study

A

External validity

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11
Q

sample chosen from the population such that available individuals are chosen

A

Haphazard/Volunteer Sample

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12
Q

Individuals are chosen from the population (non-randomly) such that the proportion of individuals with a particular characteristic is equivalent in the population and the sample.

A

Quota sample

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13
Q

sample chosen fro the population by recruiting on the internet

A

Internet sample

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14
Q

typically a fairly lrg group of individuals ; usually impossible to test

A

Population

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15
Q

the % of ppl out of the total # available who respond to a survey

A

Response Rate

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16
Q

why will we always have a sampling error?

A

b/c the sample will nvr give the same observations as the entire population would.

17
Q

What are most likely to be representative of the population?

A

Probability samples

18
Q

obtained more easily than a probability sample

A

conveience sample

19
Q

Quite common in psychological research

A

haphazard/volunteer sample

20
Q

unlike a stratified random sample, this will make use of convenience sampling techniques