two to eight per cent, according to FBI studies).We know false claims are the anomaly (The link provided is not a FBI study.
The way you AND the authors present the percentage is misleading. Anyone not reading the study will naturally conclude that 92 to 98% of claims are true. It is not the case. The most amazing thing about this article is that they don't even try to find how many are true. The cases are broken as follow:
5,9% false
44,9% did not proceed
13,9% insufficient information
35,3% proceeded
No info on the proceeding results
So from this study we know 5,9% are most certainly false. Of the remaining 94,1% we have no idea. That's it.
Also, N=136 is very small and an all campus cases study forbids any inference to the general population.
So, sorry but no, we do not know that 2 to 8% of claims are false. It is simply impossible to know or even approximate the ratio of false claims. As a matter of fact, this article proves that the false claims have to be superior to 5,9%. It could be a little (10% for exemple) or a a lot (40% for exemple).
shake my head, why dude? you got a small penis?