> So I'm curious, what would be an appropriate number of subjects? This depends on the experiment. Some of the things to account for are the number of variable

> So I'm curious, what would be an appropriate number of subjects? This depends on the experiment. Some of the things to account for are the number of variables, the confidence you are looking for and the amount of interdependence. Consult a statistician, particularly one expert in experimental trials, for an evaluation.