Well, fair enough. To split hairs ever finer, though...
Placebo is present in all circumstances, as is nocebo.
Regression to the mean is a statistical phenomenon. It can help aid understanding of the size and role of placebo effects, but it isn't a part of the placebo effect. Ditto data collection and analysis.
Placebo is present in all circumstances, as is nocebo.
Regression to the mean is a statistical phenomenon. It can help aid understanding of the size and role of placebo effects, but it isn't a part of the placebo effect. Ditto data collection and analysis.
But yeah, I'm probably splitting hairs :)