More about One-factor epxeriments

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7 Terms

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Factor

independent variable

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determining Causation

Manipulation ^ internal validity

extreneous factors/cofounding variables decrease internal validity

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Determining Causation in Experiments

  • no significant differences between my groups

    • random assignment (n >= 31)

  • No differences between groups during study (exp IV)

    • cofounding variables violate this

      • study conditions

      • experimenters

      • time of study

      • types/conditions of IV (placebo)

      • steryotype threat

  • significant differences between groups at end of study


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Factor Levels

Therapy: CBT, Talk, Exposure

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Within

  • order of experience affects results (order effects)


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Counter Balance

Randonmly assign within subjects epxeriments to different orders of conditions

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