Experimental methods

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  • Created by: Bethany
  • Created on: 19-08-19 18:34
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  • Experimental method
    • Laboratory experiments
      • establish a cause and effect relationship between an IV and DV
      • conducted in a controlled environment using standardised procedures
      • high degree of control over variables
      • easy to replicate
      • high demand characteristics
      • low ecological validity
    • Field experiments
      • establish a cause and effect relationship between an IV and DV
      • conducted in real-life environments or situations
      • high ecological validity
      • low demand characteristics
      • low degree of control over variables
      • difficult to replicate
    • Natural experiments
      • establish a cause and effect relationship between an IV and DV
      • IV varies naturally, they take advantage of natural events
      • high ecological validity
      • provides opportunities for research that may not otherwise take place
      • random allocation to conditions is not possible
      • difficult to replicate
    • Quasi experiments
      • establish a cause and effect relationship between an IV and DV
      • IV does not vary because the conditions already exist
      • high ecological validity
      • provides opportunities for research that may not otherwise take place
      • random allocation to conditions is not possible
      • difficult to replicate

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