Types of Experiments Flashcards

1
Q

Lab experiments

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

Lab experiments strengths

A

+ high control over confounding and extraneous variables
+ Validity
+ More chance of replication

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3
Q

Lab experiments weaknesses

A
  • Lack generalisability
  • Artificial
  • Low external validity
  • Demand characteristics
  • Low mundane realism
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4
Q

Field experiments

A

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

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5
Q

Field experiments strengths

A

+ Higher mundane realism
+ Valid and authentic behaviour
+ Higher external validity

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6
Q

Field experiments weaknesses

A
  • Ethical issues
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7
Q

Quasi experiments

A

A study that is almost an experiment but lacks key ingredients. The IV has nit been determined by anyone- the variables simply exist, such as being old and young

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8
Q

Quasi experiments strengths

A

+ Carried out under controlled conditions
+ Can be replicated

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9
Q

Quasi experiments weaknesses

A
  • Can’t randomly allocate participants so there may be confounding variables
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10
Q

Natural experiments

A

An experiment where the change in the IV isn’t brought about by the researcher but would have happened even if the researcher had not been there. The researcher records the effect on a DV they have decided on

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11
Q

Natural experiments strengths

A

+ high external validity
+ real world

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12
Q

Natural experiments weaknesses

A
  • limit generalisation
  • participants may not be randomly allocated
  • less sure if IV affected the DV
  • lack realism
  • Demand characteristics
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