Quahom...The thing with science is, if something is left out of an experiment, not thought of, or otherwise wrong with it, that will likely be caught, if not in the first instance, then when another scientist replicates the experiment - which is the hallmark of science. A result must be replicable in order to be taken seriously in the scientific community.
I honestly don't see how this is possible in religion, even in the prayer example I gave in my previous post. It isn't possible for one individual to recreate the state of mind of another person in prayer or in contemplating religious or theological issues. It seems to me impossible to equate the experience of two people praying, even when uttering the exact same prayer. I'm not saying that prayer is not a good thing to engage in, but only that I suspect that what one person learns in prayer is probably not applicable generally but is specific to that person only and may be biased toward what they hope to hear. This problem, seeing what one is looking for or what one wants to see is, of course, also possible in any particular running of a scientific experiment, but is also a factor that is easy to weed out in repeated runnings of the experiment by separate researchers. That is why, when a new scientific discovery is made, it is reported in journals in minute detail, including how the experiment was set up, the conditions that were in existence during the experiment, and so on.
An example that may seem rather exotic, but is fairly common in the religion that I used to associate with (I've known people who have played out exactly this scenario): A young man is dating a young woman who he desires to marry. This is serious business, for in that religion marriage is not beleived to be just for this life, but for the rest of eternity, so he prays about it and gets the answer that, yes, she is "the one". He proposes to the young woman, using the answer to his prayer as a sort of extra incentive for her to say yes (in that religion, all male members hold the priesthood, which is seen as a mark of authority). However, the young woman is not as ardently in love with the young man and tells him that she must pray about it before she answers him. She does pray about it and receives the answer that no, he is not the one she is to marry. Accordingly, she turns down his proposal. He protests that he knows the answer to his prayer is true, but she maintains that if God wanted her to marry him, He would have told her as well, not just the young man, priesthood holder or not.
The dilemma here is, how can it be determined who received the correct answer - if indeed there is a "correct" answer here. There really is no way to do so. He got his answer, she got hers, but I can see no way to determine exactly how much his desires and her desires (or lack of same) played into the answer they received. Were either of them really hearing the voice of God, or were both of them getting the answer they wanted because that was all they were prepared to hear? It does no good to go to a third party and ask him or her to pray about it, because there is no way to tell to what extent that person might be inclined to favor either the young man's claim (that, as a priesthood holder, he has the authority to receive an answer for the young woman as well) or the young woman's claim (that surely God would tell her if He wanted her to marry the young man).
In short (yeah, after all that), there is no way for a third party to exactly replicate the "experiment" of a prayer, as there are ways to replicate a scientific experiment.