Criticizing the use of p-values has begun to be so common place that it is getting dull repeating it. However, in his class on Moderation and Mediation today, Dominique Muller recommended a YouTube presentation called: “The dance of the P-values”. It puts the difference between confidence intervals and the p-values into perspective in a humorous way. Can only recommend it.
The dance of the p-values
Intro Statistics 9 Dance of the p Values
I use pictures from the ESCI software to give a brief, easy account of the Dance of the p Values. The simulation illustrates how enormously and disastrously variable the p value is, simply because of sampling variability. Never trust a p value! Use estimation, not NHST!