ewrobbins.com

* one-sample proportion test
  * do NOT use Yate's continuity, so specify:
    * prop.test(..., correct = FALSE)

* $\Chi^2$ goodness of fit test
  * to ensure sufficient sample size: $n \cdotp_{0} > 5$
  * don't use continunity corrections!
    * chisq.test(..., correct = FALSE)

• QI
  • SQUIRE 2.0 for QI Reporting
  • Stepped-wedge trial
    • Link
• Linear regression
  • Q-Q plot
  • plot of residuals
  • Cook's Distance
  • these are different!
    • correlative
    • descriptive
    • predictive
    • associative
• confounding vs. effect modification

to assess a paired difference

• create histogram
• plot as box plot
• make Q-Q plot