Welcome to science folks. Having worked a decade around a campus regularly sitting in on presentations (and being in research myself) I can say I believe 80% of science wrong AND not reproducible, 10% being an outright fraud (10% being legit).
(1) As a researcher you lose funding m if you don’t produce
(2) funds aren’t allocated to reproduce
(3) Researchers who publish will block research that disagrees with their work (as they’re also reviewers) (will lose future funding / have more competition)
(4) Researchers wont rescind their work if later findings warrant it (no incentive to)
(5) N numbers are way too low (higher N is more money)
Highly recommend this book to discuss why: https://www.amazon.com/Rigor-Mortis-Science-Worthless-Billio...
It all comes down to incentives.
(1) As a researcher you lose funding m if you don’t produce
(2) funds aren’t allocated to reproduce
(3) Researchers who publish will block research that disagrees with their work (as they’re also reviewers) (will lose future funding / have more competition)
(4) Researchers wont rescind their work if later findings warrant it (no incentive to)
(5) N numbers are way too low (higher N is more money)