You are demonstrating confirmation bias on a daily basis, so it is safe to assume that you are doing that same thing when you "think" your prayers work.<quoted text>
No I'm not. Prayer does work. I've experienced it working first hand! So whatever "tests" you've offered up, they're obviusly inconclusive.
It is believers who have never provided conclusive evidence of prayer working, it's one of the most common reasons for believers to become deists, actually. However, your asserting that it does work is dangerous, there are many parents who have allowed their children to suffer agonizing and horrific deaths that could have been prevented with medicine simply because it was "god's will." If you cannot provide solid evidence, then you cannot claim it works at all.