Beware those scientific studies – most are wrong, researcher warns
Some journals now insist that authors pre-register their research protocol and supply their raw data, which makes it harder for researchers to manipulate findings in order to reach a certain conclusion. It also allows other to verify or replicate their studies.
Because when studies are replicated, they rarely come up with the same results. Only a third of the 100 studies published in three top psychology journals could be successfully replicated in a large 2015 test.
Medicine, epidemiology, population science and nutritional studies fare no better, Ioannidis said, when attempts are made to replicate them.
"Across biomedical science and beyond, scientists do not get trained sufficiently on statistics and on methodology," Ioannidis said.
https://www.yahoo.com/news/beware-those-scientific-studies-most-wrong-researcher-warns-164336076.html