How to create a reliable Power Balance band test?

I was recently sent a power balance bracelet to test. This came about due to the fact that someone asked me did I wear them, and I subsequently did some research which threw up all sorts of doubt as to their reliability.  

Quite a debate was struck up, and on the whole, with a few isolated cases, it was felt that they did not work, and had no scientific background at all.

Despite all this, Power Balance UK offered (without prompting may I add) to send me one to test out, since i was so interested, I quote.

So, i now have it. I havent opened it or even put it on. Before i do this i need a plan. How do i construct a reliable test on it that does not contain bias?

• Do I use just myself? or a range of people?
• what tests exactly do I conduct?
• do i do the test blind folded so i cant cheat?
• same time of day / week over a series of weeks?
• a placebo bracelet?
• a double blind?

What do we think people? i am aware that a lot of the tests presented on this is flawed, for example, if i repeated the same test over a series of weeks, either with or without the band, is that bias? did I learn the tests rather than get better at them?

I am setting out with a very negative view of power balance bracelets, however I want to do the tests justice, and create tangible results.

I would welcome your thoughts on this? do you have an idea for a reliable way to test them?