Twin study suggests rationality and intelligence share the same genetic roots - the study suggests that being irrational, or making illogical choices, might simply be another way of measuring lower intelligence.

[u/mvea]

https://www.psypost.org/twin-study-suggests-rationality-and-intelligence-share-the-same-genetic-roots/

[u/Xolver]

Isn't doing a study because you have some (maybe strong) hypothesis and want to test it one of the best reasons of doing a study? What's the problem with that? It certainly beats doing a study only because you know you need funding and you have to shoehorn a proposal. 

[u/neobeguine → u/Xolver]

The concern is that if you are too married to your hypothesis, you will find reasons to ignore any results that might contradict it and chose measures or tests that are most likely to give you the result you want.  It's like trying to do a push poll on the universe

[u/SoldnerDoppel → u/neobeguine]

That's why replication is so important, though there's little interest in it since it's so "unglamorous".

[u/froznovr → u/SoldnerDoppel]

That, and I heard it's difficult to get funding from grants to do anything that isn't novel.

[u/BonJovicus → u/froznovr]

This is the central issue. Because grants are incredibly competitive, there is no reason to give money to someone who is going to do something that has already been done. You can make arguments for doing the same experiment with a different methodology because of advancements in technology or something, but you can't propose to do a true replication experiment.

[u/Mylaur → u/BonJovicus]

You could then be inspired by a paper, replicate the previous study as a process for your new study, thus hiding replication inside a novel-aimed grant.