experimental design

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  • experimental design
    • independent groups: take part in one condition
      • strength= avoids order effects, random allocation
      • limitation= participant variables, need twice as many participants
    • repeated measures: take part in all conditions
      • strenght= minimises participant variables, fewer participants needed
      • limitation= order effects, demand characteristics
    • matched pairs: like independent but matched on key participant variables
      • strength= avoids order effects, minimises participant variables
      • limitation= difficult to achieve a good match


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