Comment Re: Weird (Score 1) 107
It is hard to test things that are suspected to cause cancer because you cannot go around giving people cancer, so studies are often cut off before they become conclusive.
A small sample size is not the same as a statistically invalid size. A bad study is one that violates double blind or leaves out data or otherwise does not follow good science. A small sample size provides useful data to contribute to an overall picture. In aggregate with other studies, it adds to the picture. California adds the warning when there is evidence of a problem under some circumstances even if we do not yet know the full scope of those circumstances. It errors toward safety, which is excellent public policy.