Pavlovian conditioning

On my way to Statistics I got into a little bit of a debate over whether or not Pavlov used a bell or a metronome. I was the one who was arguing against the "fact" that Pavlov used a bell in his experiments. What the person I was debating with used as an argument in support of the bell belief was that some books publish about the bell. As a counterpoint to that I pointed out that as it doesn't matter if some books publish as true it it's still not true. Where as it's known to be true that he, Pavlov, used metronomes among other things to condition the dogs.

 

A quote that I like that I believe pertains to this but I didn't use in the argument is "Reality doesn't care if you believe in it."-Boba Fett