Question: What is the difference between clinical efficacy and effectiveness studies? Discuss the differences between internal and external validity. Describe how the mean, median, and mode

  1. What is the difference between clinical efficacy and effectiveness studies?
  2. Discuss the differences between internal and external validity.
  3. Describe how the mean, median, and mode of data are found.
  4. The Pearson r takes on what range of values and what do those values indicate regarding linear relationships?

I have these all completed, so I am only hoping for reassurance of what I've already completed. Thank you for your time!

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