|Why are science people so very taken with double-blind testing? Has a double-blind test been performed to see whether double-blind testing really works? Surely it can't be relied on until its effectiveness has been proven that way?|
I propose a double-blind study to see whether people can communicate by talking. We'll put two people in separate soundproof boxes, and a deck of 'psychic' cards (the star/squiggles/square/circle sort), shuffled, in the box with the 'speaker'. There will also be the same setup with a 'speaker' who is not going to speak, to provide a control. The 'listener' in each case will have to draw on blank cards the images in the correct order from the deck of cards. The experimenter won't know which pair of boxes is which, nor the order the cards have been shuffled into, until it is revealed after the experiment's conclusion. This is a fair and unbiased double-blind setup, right?