Experimental Methods Flashcards

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1
Q

What are the conditions for a lab test?

A

Specified controlled which researcher manipulates IV to measure effect on DV to minimise effect of EV on results

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2
Q

What are the conditions for a field test?

A

Natural conditions, researcher manilpulates IV to measure effect on DV
Field is any place that isn’t lab

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3
Q

What are the conditions for a natural test?

A

Researcher doesn’t manipulate IV but examines effect of existing IV on DV
IV is naturally occurring, like food
Behaviour of people affected either compared to theirs beforehand, or with group who haven’t encountered IV

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4
Q

What are the conditions for a quasi test?

A

Naturally occurring IV but it already exists
IV is difference between people, e.g. gender
Researcher examines effect of IV on DV
Quasi experiments don’t have to be, but mostly conducted in natural setting

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5
Q

What are the nature of participants in lab experiments?

A

Aware they’re taking part in investigation due to contrived nature of situation which may feel unlike real-life

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6
Q

What are the nature of participants in field experiments?

A

Don’t know they’re taking part in investigation with view to observing more behaviour

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7
Q

What are the nature of participants in natural experiments?

A

IV natural in experiment but not necessarily context in which investigation takes place since participants could be studied in lab

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8
Q

What are the nature of participants in quasi experiments?

A

May be conducted in lab under controlled conditions, but often in natural settings

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9
Q

Evaluate lab experiments

A

Strength - high control of extraneous variables - high degree of internal validity & protects DV from EV

Limitation - lack external validity - participants can change behaviour to unnatural manner

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10
Q

Evaluate field experiments

A

Strength - higher level of ecological validity - results more representative of everyday life

Limitation - ethical issues - participants unaware of investigation, so can’t give consent

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11
Q

Evaluate natural experiments

A

Strength - Higher level of external validity - real-life issues studied rather than manipulated artificially

Limitation - no control over environment or EV - difficult for research to accurately assess effects of IV on DV

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12
Q

Evaluate Quasi experiments

A

Strength - allow researchers to compare different types of people - provide insight into similarities & differences

Limitation - participants can’t be randomly selected - could be subject to researcher bias & less certain that IV alone caused effect or other environmental factors

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