IV,DV and Hypothesis

    Cards (10)

    • Independent variable (IV)
      What is changed by the experimenter
    • Dependent variable (DV)

      What the experimenter measures
    • Aim
      A statement/question about what you are intending
    • Types of hypotheses
      • Null hypothesis
      • Experimental hypothesis
    • Null hypothesis

      Statement of no difference
    • Experimental hypothesis
      Testable statement of the effect of an IV on a DV. What the researcher believes to be true
    • Types of experimental hypotheses
      • Directional/one tailed
      • Non-directional/two tailed
    • Directional hypothesis

      States the kind of difference you are expecting between the groups
    • Non-directional hypothesis

      Simply states that there will be a difference between groups
    • Writing a good hypothesis
      • Should always include both conditions of the IV
      • Must be clear and testable
      • Written in the future tense
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