Statistics is difficult, and empirical researchers who wish to analyze their data ought to solicit professional statistical advice rather than trying something for themselves. When I asked Sijtsma about this in person, he elaborated (I am paraphrasing here), "My recommendation was inspired by daily life. If my car breaks down, then I take it to a mechanic - I do not try to fix it myself. And if I have an issue with my teeth, I go and see a dentist rather than my neighbor."
- from a review of "Never Waste a Good Crisis: Lessons Learned from Data Fraud and Questionable Research Practices" by…