[sp332]

Off the top of my head, maybe the shock of being jabbed with a needle would have an effect on people's symptoms that should be controlled for.

[bookofjoe]

It IS controlled for: ALL participants get jabbed with a needle.

[sp332]

Right, that's why you need to load some needles with a placebo.

[bookofjoe]

Participants receiving placebo get the placebo through a needle.

[sp332]

Yes. I'm in favor of this.