Change the given paragraph to be simpler.
In a 1933 paper, Jerzy Neyman and Egon Pearson called this cutoff the " significance level ", which they named " α ".
In their 1933 paper, Jerzy Neyman and Egon Pearson recommended that the significance level (e.g. 0.05), which they called α, be set ahead of time, before any data collection.