3 ms·
It must be hard to do double-blind studies about caffeine, since at a typical dose it’d easy to tell the difference between caffeine and a placebo.
by kwertyoowiyop 5y ago
It must be hard to do double-blind studies about caffeine, since at a typical dose it’d easy to tell the difference between caffeine and a placebo.
- jrootabega 5y agoEspecially considering these subjects all drank coffee daily, so the placebo group would experience withdrawal.
- systemsignal 5y agoBigger problem is probably just the sample size of 20 and sampling given that it was likely just college students