Researchers using the same data and hypothesis arrive at different conclusions (2022)
pnas.org
pnas.org
In order for this to be possible, conducting the experiment would need to be done by an impartial 3rd party separate from the researchers.
If the experimenter is in a better position to judge their own data than others, then they have not included sufficient data.
"Does Immigration Undermine Public Support for Social Policy?"
ISSP Data (immigration, welfare attitudes) for 17 countries.
73 independent research teams come to different conclusions, nobody knows why.