April 19, 2016
Reminder of epidemiology problems
Bad science
James Heathers' graphic, and the one he alluded to
Positive predictive value
shinyapps.org/apps/PPV/
Explanation http://www.nicebread.de/whats-the-probability-that-a-significant-p-value-indicates-a-true-effect/
Preregistration
What is this like in the real world?
Badges to fix science
Economist on positive predictive value and replication
Slide with R Output
summary(cars)
## speed dist ## Min. : 4.0 Min. : 2.00 ## 1st Qu.:12.0 1st Qu.: 26.00 ## Median :15.0 Median : 36.00 ## Mean :15.4 Mean : 42.98 ## 3rd Qu.:19.0 3rd Qu.: 56.00 ## Max. :25.0 Max. :120.00
Slide with Plot
