Experimental Method

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  • Experimental Method
    • Aim
      • Definition: a general statement of what the researcher intends to investigate the purpose of the study
      • Aims are developed from theories
    • Hypotheses
      • Definition: a clear, precise, testable statement that states the relationship between the variables to be investigated, stated at the outset of the study
      • Directional Hypothesis = states the direction of the difference or the relationship
      • Non-directional hypothesis = doesn't state the direction
    • Variables
      • Definition: any 'thing' that can vary or change within an investigation
      • Independent variable = some aspects of the experimental situation that is manipulated by the researcher - or changes naturally -so the effect on the DV can be measured
      • Dependent Variable = the variable that is measured by the researcher, any effect on the DV should be caused by the change in IV
    • Operationalisation
      • Definition: clearly defining variables in terms of how they can be measured


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