Where can I find a project to analyze the effectiveness of methods?

Question

Agile

I am in search of information on the application of various project management methodologies (any, the area does not play a role). We need numbers, and not just "everything is cool", "this scrum is yours", "write the code, b#%@&". For valuable advice, the Motherland will not forget you, and I will not forget you either.

Answer 1

efficiency 62% - 48% - 42%
of the methodology substitute in any order
"if the cows go wedge - they will be like swans", yeah

Answer 2

With the same success, we can say that all statistics are the paretto law - 20/80. In fact, he himself was looking for this kind of analytics, but so far did not come across. Moreover, it is almost impossible to collect it - companies need to post materials on projects in the public domain and expertise is needed that will communicate all this on an ongoing basis, but in reality most of the "successful projects" are not really such.
Here there is a large base on management methodologies, incl. project management - mahamba.com/ru/glossary

Answer 3

This is a general comparison, but comparing specific practices is a rather strange exercise, because their applicability is completely different.