Yes, I think the caffeine always helped, but I think there was one combination where the effect of claim was larger than the effect of the caffeine. At that point, I become a bit nervous about the meaning of whether caffeine helps. (by “interaction,” I meant the interaction of effects on performance)
Yes, I think the caffeine always helped, but I think there was one combination where the effect of claim was larger than the effect of the caffeine. At that point, I become a bit nervous about the meaning of whether caffeine helps.
(by “interaction,” I meant the interaction of effects on performance)