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Alevel Psychology > Research methods : Types Of Experiment > Flashcards

Research methods : Types Of Experiment Flashcards

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1
Q

What is a laboratory experiment ?

A

An experiment that takes place in a controlled environment within which the researcher manipulates the IV and records the effect on the DV. Whilst maintaining strict control of extraneous variables

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2
Q

What is a field experiment ?

A

An experiment that takes place in a natural setting within which the researcher manipulates the IV and records the effect of the DV

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3
Q

What is a natural experiment ?

A

An experiment where the change in the IV is not brought about by the researcher but would have happened even if the researcher had not been there. The researcher records the effect on the dv

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4
Q

Quasi experiment

A

a study that is almost an experiment but the IV has not been determined by anyone. The variables simply exist such as being old or young .

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5
Q

Which experiment has highest control over IV ?

A

Lab experiment

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6
Q

Which experiment has lowest level of control over IV

A

Natural

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7
Q

Which experiment has middle level of control over IV

A

Field experiment

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8
Q

Which experiment has the lowest ecological validity

A

Lab experiment

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9
Q

Which experiment has the highest level of ecological validity

A

natural experiment

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10
Q

Which experiment strikes a balance between control of the IV and having ecological validity

A

Field experiment

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11
Q

In what two experiments is the IV controlled and manipulated by the researcher ?

A

Lab and field experiment

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12
Q

In what two experiments is the IV not controlled and manipulated by the researcher

A

Natural and quasi experiment

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13
Q

In what experiment is the IV controlled

A

Lab experiment

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14
Q

In what two experiments is the environment not controlled

A

Field and natural

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15
Q

Internal validity of lab experiment

A

High internal validity due to high control over extraneous variables

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16
Q

External validity

A

Low external validity as environment is artificial . Results cannot be generalised as task may not represent real life

17
Q

Ethical issues of lab experiment

A

No ethical issues as partcipants generally know they are taking part

18
Q

Reliability of types of experiment ( replication ) ?

A

Yes high control over variables allows replication to occur especially to check results

19
Q

Demand characteristics of lab experiment

A

Yes because participants know they are in a study they may guess the aim and change their behaviour leading to results not being as valid

20
Q

Internal validity of field experiment

A

Low control so low internal validity as increased risk of extraneous variables due to lower control

21
Q

External validity of field experiment

A

Higher level of validity as setting is more natural and takes is more representative of population

22
Q

Are there ethical issues in field experiments ?

A

Yes as participants are often unaware they are taking part in research

23
Q

Reliability of field experiment ?

A

Envirmoment is less controlled

Cannot be easily replicated

24
Q

Demand characteristics of field experiment

A

Participants don’t know that they are taking part so act in a natural way

25
Q

Internal validity of natural experiments ?

A

Increased risk of extraneous variables due to lower levels of control and no random allocation

26
Q

External validity of natural experiment

A

High as setting is natural soo results can be generalised as it is would have happened anyway

27
Q

Ethical issues of natural experiment

A

No as the events would of happened anyway and researchers just making use of them happening

28
Q

Reliability of natural experiment

A

It is a one off occasion so can’t be replicated

29
Q

Demand characteristics of natural experiment

A

Participants are responding to something researchers have no control over

30
Q

Internal validity of quasi experiment

A

Carried out in lab conditions so high control over extraneous variables

31
Q

External validity of quasi experiment

A

Environment artificial so results can’t be easily generalised beyond the setting and doesn’t represent real life experiences

32
Q

Ethical issues of quasi experiment

A

Partcipants know that they are in a study

33
Q

Reliability of quasi experiment

A

High level of control allows replication to occur to check accuracy of results

34
Q

Demand of characteristics quasi experiment

A

Participants know that they are being tested so there is a chance of them guessing the aim and changing behaviour

Alevel Psychology (109 decks)

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