To be clear, this doesn't seem like it invalidates anything in the original experiment. The "rule-breaking" isn't referring to anything the researchers were doing. It's referring to what the participants were doing. It points out that the compliant subjects who delivered the shocks weren't always following the procedure they were given perfectly. Which is, of course, expected, since people in general don't follow ins…
The interesting bit is that the group the quit the experiment part way through (presumably over ethical objections) were consistently better at following the rules, which indicates that the rules may have actually been designed to prevent some of the problems that the obedient group experienced, which might prevent them from seeing the ethical or moral issues involved in the experiment. Now the interesting question i…
The ones who were "obedient" figured out it was fake and treated it as a game.