Practice Quiz

FPGEE Foreign Pharmacy

Category - Clinical

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A clinical trial is studying the response of 4 independent groups. if numeric scales are used, which of the following would be the preferred mode of statistical analysis?
  1. ANOVA
  2. Two separate paired t-tests
  3. Mann-Whitney
  4. Chi-square.
Explanation
Answer: A − ANOVA (Analysis of variants between groups) would be the preferred test for numerical data with 4 groups. When studying 2 groups, the paired t-tests would be appropriate, but running two paired t-tests would add no information about all the groups. Mann-Whitney is a non-parametric test and Chi-square tests are used on nominal (coded) data.
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