Sing Chawla D. Most researchers disclose their results before publication. Physics World 2018 May 17
Over two thirds of researchers have released the results of at least one study they authored before the findings were formally published. A survey of more than 7,000 researchers across nine disciplines found that social scientists, mathematicians, biological scientists and those working in agriculture have the highest disclosure rates, around 75%. Most academics do so to get feedback from peers.
https://physicsworld.com/a/most-researchers-disclose-their-results-before-publication/