Methods- Laboratory Experiments

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  • Created by: Hannah
  • Created on: 31-12-10 13:39

Lab Experiments:

  • artificial environment
  • manipulated I.V
  • D.V can be measured accuarately
  • Experimental design usually Independent Groups
  • control groups are used as a baseline to compare results to
  • ALWAYS has an experimental hypothesis
  • Example Loftus and Palmer- I.V was the leading question D.V- estimates of speed
  • 

Evaluation

+ Reliable-all extraneous variables are tightly controlled and as a result the experiments can be repeated and are likely to produce the same results.

+ Cause and effect relationships can be measured as it is easy to see how one variable effects the other (e.g. How Leading questions affect estimates of speed)

+High validity as control groups are able to be set up which means the researcher can see if the study is affected by any confounding variables

+ can produce quantitative data as well as qualitative data so quantative data is

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