The Law Of Attraction - Quantifying It

The law of attraction is the thought that like attracts like, positivity attracts positivity, a focus on wealth attracts wealth, etc.. Some say that this is nothing more than self-fulfilling prophecy and that to be positive happens to make it easier to make friends/network/sell a product, etc., but some go as far as to say that you can LITERALLY alter reality based on your focus. For those who believe that, I wish there were some way to measure this in a quantifiable way. The only problem is, I feel like to try and measure it might be to have a lack of faith. My proposition is to attempt to have a person who is successful with the law of attraction be the subject of a study:

Goal: They will focus on proving the law of attraction through successfully demonstrating it in the study.

Method: There will be a random 20-sided die (Math.random or some other random/pseudo-random number generator); the subjects goal will be to focus on and attract a certain number to have it occur over and over and over (or more than chance, as I don't imagine anyone would be perfect at the law of attraction if it were factually a thing, since they would essentially be a god if that were the case). Success would mean a greater than chance prevalence of the number focused on over many multiple attempts.

It would be interesting to see the results; of course, if it fails, those who hold it to be true regardless will just say the person didn't have faith, BUT if it is successful, that would be groundbreaking. It wouldn't surprise me if this was a study already or if it is one at some point in the future.