Looking at Table 3, it seems like there is a consistent improvement in divergent problem solving, but it's well within the standard deviation for each row. So i

Looking at Table 3, it seems like there is a consistent improvement in divergent problem solving, but it's well within the standard deviation for each row. So it may actually help with that and we just need many more data points. The other thing is, for me caffeine results in more ideas bubbling out of my subconscious. This can be great for brainstorming-type creativity or getting unstuck while working on a creative project - but it's like operations research where you're solving the problem by adding another variable. It's not useful for more specific, constrained problems like the "divergent" tasks in the paper.