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5 Written Questions

5 Multiple Choice Questions

  1. Max-min
  2. is a possible contributing cause in a clinical study or trial that
    could produce the same effect as the variable under investigation. A good clinical study or trial attempts to eliminate confounding variables using a control group.
  3. for a data set consists of the minimum value in the data set
    Min, the fi rst quartile Q1, the median M = Q2, the third quartile Q3, and the maximum value Max.
  4. is one of the contributing factors to sampling error. It is the result of choosing a bad sample. Good methods of sample selection minimize sample bias.
  5. is a sampling technique in which every member of the population should have the same (random) chance of being in the sample as any other member of the

5 True/False Questions

  1. meanof a quantitative data set is a summary of the center of the data set.
    It is computed by adding the data elements together and dividing by N, the number of
    data elements.


  2. Q125/100 * N


  3. capture-recaptureMax-min


  4. Q325/100 * N


  5. double-blind studyis a controlled placebo study in which neither the subjects nor the scientists conducting the study know which subjects are in the treatment group and which are in the control group.


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