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Chapter 14

Chapter 14. Inferential Data Analysis. Two Independent Groups t Test. Draw two samples from same population and administer different tests Draw a sample from each of two populations. Is there a sex difference for alcohol intake in C57 strain of mice?. Step 1: define hypotheses.

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Chapter 14

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  1. Chapter 14 Inferential Data Analysis Conducting & Reading Research Baumgartner et al

  2. Two Independent Groups t Test • Draw two samples from same population and administer different tests • Draw a sample from each of two populations Conducting & Reading Research Baumgartner et al

  3. Is there a sex difference for alcohol intake in C57 strain of mice? • Step 1: define hypotheses Conducting & Reading Research Baumgartner et al

  4. Is there a sex difference for alcohol intake in C57 strain of mice? • Step 2: define alpha level Conducting & Reading Research Baumgartner et al

  5. Is there a sex difference for alcohol intake in C57 strain of mice? • Step 3: Determine critical value • Step 4: Conduct statistical test Conducting & Reading Research Baumgartner et al

  6. Is there a sex difference for alcohol intake in C57 strain of mice? • Step 5: Accept or reject null hypothesis Conducting & Reading Research Baumgartner et al

  7. Two dependent Groups t Test • Repeated measures design: • Matched pairs design: Conducting & Reading Research Baumgartner et al

  8. Decision on Alternate Hypotheses and Alpha Level • Remember to consider whether the test is one- or two-tailed Conducting & Reading Research Baumgartner et al

  9. Decision on Alternate Hypotheses and Alpha Level • Remember to consider whether the test is one- or two-tailed Conducting & Reading Research Baumgartner et al

  10. Decision on Alternate Hypotheses and Alpha Level • Remember to consider whether the test is one- or two-tailed Conducting & Reading Research Baumgartner et al

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