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  • Variables
    • Independent variable
      • Variable researcher manipulates in two or more conditions e.g. severity of punishment
      • Observe effect on DV
    • Dependent variable
      • Main measured outcome of the experiment e.g level of anxiety
      • Should be due to manipulation of IV
    • Extraneous variables
      • Other variables that could potentially influence the DV
      • Controls employed to prevent EV's from becoming confounding variables
      • Confounding variables: affect DV strongly enough to distort effect of IV
    • Situational variables
      • Variables connected with research situation
      • Controlled through standardisation- keeping something same for all participants
    • Participant variables
      • Variables concerned with individual differences of research participants
      • Examples: mental health, mood, religion, age, intelligence


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