Invitation to Scientists - Can you disprove this theory?

God is a personal God who answers your prayers if you offer them up in earnest. If you try faith and prayer, it will reward you with peace, joy, and a new heart and purpose. One must approach this scientifically, with the null hypothesis, removing all emotion and previous opinions, until one proves this correct or false. It is a personal statement, which requires personal scientific trials, and I would imagine over a period of time. If one does not do this scientifically, can one actually feel confident in discussing their opinions as if it was fact?