I don't know what that means, because a polygraph by design tells the polygrapher whatever they want it to.
I believe it was the subject of the test who could make the polygraph reading show whatever they wanted, even though it was being administered by an experienced operator.
If the demonstration was performed in some blinded protocol then perhaps there was more room for ambiguity in the results than usual.
I believe it was the subject of the test who could make the polygraph reading show whatever they wanted, even though it was being administered by an experienced operator.