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T-Test Summary

T-Test Summary. Null Hypothesis. Any observable difference between two mean values is due to chance Determine whether there is a significant difference between IV and DV IV: alleged cause V: outcome. Independent T-test. Effect of IV on DV Two independent groups: experimental and control

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T-Test Summary

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  1. T-Test Summary

  2. Null Hypothesis • Any observable difference between two mean values is due to chance • Determine whether there is a significant difference between IV and DV • IV: alleged cause • V: outcome

  3. Independent T-test • Effect of IV on DV • Two independent groups: experimental and control • Experimental group receives IV • Control group does not • Determine whether the means were signficant

  4. Dependent T-test • Determine significance from pre to post measures • One group two treatments

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