I devised a test to see if people prefer Ray Charles or Stevie Wonder...

It's a double blind study.

This joke may contain profanity. 🤔

A city with a 400 year old feud about penis size...

The men on the east side of the river say they have larger penises, the men on the west claim to have the largest. The citizens wanted to put the feud to rest once and for all. So they decided to do a study. A very scientifically sound study, double blind, all that stuff. So everything went as plann...

What kind of dates do scientists like to be set up on?

Double blind

I heard Stevie Wonder took part in a clinical trial....

He was the double blind

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