Psychological Experiments FlowChart

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  • Psychological Experiments
    • Lab
      • An experiment conducted in a controlled environment which sees the manipulation of an independent variable on a dependant variable to establish cause and effect.
        • Advantages - Control of confounding variables. Reliable, it can be repeated to check findings. Can establish cause and effect.
        • Disadvantage - Artificial, it lacks ecological validity. Increased demand characteristics
    • Field
      • An experiment  conducted in a natural environment which allows the researcher to manipulate a variable and measure the effect on another variable.
        • Advantages - high ecological validity. Fewer demand characteristics. We can establish cause and effect.
        • Disadvantages- affected by confounding variables. ethical issues such as consent
    • Quasi
      • An experiment where the variables are not directly manipulated. The researcher takes advantage of naturally occurring variables.
        • Advantages - Its ethical. to study variables that would otherwise be unethical to manipulate, for example aggression
        • Disadvantage - confounding variables may affect results due to not being able to randomly allocate participants to a condition.


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