mikkel_the_dane
My own religion
This is the problem with supernatural claims. Those who believe them can always come up with some explanation to avoid these tests. However, you can still test their claims. In this case, you're testing the claim that God answers prayers, which means you see if an individual has better results in healing when prayed for (secretly) or not. Of course, believers will still dismiss the evidence against with some explanation, but that doesn't change that you tested the claim scientifically.
I am an atheist.
Here is an explanation of one unsderstanding of what religion is:
Religion | Definition, Types, Beliefs, Symbols, Examples, Importance, & Facts | Britannica
Religion, human beings’ relation to that which they regard as holy, sacred, absolute, spiritual, divine, or worthy of especial reverence. Worship, moral conduct, right belief, and participation in religious institutions are among the constituent elements of the religious life.
www.britannica.com