Truth by scientific standards have nothing to do with belief. Should a deity show up in testing idt be a fact thus eliminating the need for beliving in it.
Since no deity has cared enuff to show up as of yet, nobody knows of its existance and any argument for beliving in it is looking rather dodgy. But not definately proven right or wrong.
So if someone set up a god measuring experiment and was able to prove beond dispute that the result would be final and correct. Whatever result came out would have to be the fact wed all have to accept from then on.
Science doesnt work that way thou. When making an experiment you go by whatever you have handy at the moment and work on your current hypothesis. Proving a scientific theory or law wrong in whatever specific case your working, is just good as proving it right.
That is you may with contemporary equipment set out to measure gods non existence (if thats the theory you decide). But if the experiment is supposed to have any merit atall. Any unexpected result would then prove your first assumption about god wrong.
Beliving in god or intelligent life on other planets (any planet including earth in my case) Is well good for the beliver. But without any evidence thats all it is.
Soon as SETI picks up some alien x-factor program, or a deity decides to show up and set the facts straight. Science FACT will get in line and give it the thumbs up.
Belief however is still pointless.