Experiments

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  • Created by: Steff06
  • Created on: 10-05-16 09:45
What is a laboratory experiment?
An experiment conducted under highly controlled conditions. The independent variable is manipulated by the researcher and the dependent variable is the change being measured by the researcher.
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What are the strengths of laboratory experiments?
Allow control of variables, allows us to establish cause and effect, easily replicated.
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What are the weaknesses of laboratory experiments?
Demand characteristics, can be unethical, low ecological validity.
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What is a field experiment?
Experiment conducted in a real life situation. Participants are usually unaware that they are involved. The IV is still being manipulated.
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What are strengths of field experiments?
High ecological validity, less likely to show demand characteristics.
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What are the weaknesses of field experiments?
Hard to control, time consuming/expensive, difficult to gain informed consent and to debrief the participants.
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What is a quasi experiment?
The independent variable is not manipulated as it is naturally occurring.
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What are the strengths of quasi experiments?
Participants often unaware they are taking part so less demand characteristics. Not as artificial as lab experiments so high ecological validity.
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What are the weaknesses of quasi experiments?
Harder to establish cause and effect, less control.
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Card 2

Front

What are the strengths of laboratory experiments?

Back

Allow control of variables, allows us to establish cause and effect, easily replicated.

Card 3

Front

What are the weaknesses of laboratory experiments?

Back

Preview of the front of card 3

Card 4

Front

What is a field experiment?

Back

Preview of the front of card 4

Card 5

Front

What are strengths of field experiments?

Back

Preview of the front of card 5
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