So your issue is not with the central result result of the study (regardless of whether it's a novel conclusion), but rather that the study itself is overly simplistic and leads to the results rather than reveals them? By asking participants to stop at the 'very first point when they make up their minds', you're predisposing them to make a decision on as small amount of information as possible. It doesn't matter that they have to see the whole set of judgement criteria anyway. The study simply instructs the subjects to make a decision, not necessarily an accurate one. And all this leads to an inevitable conclusion that doesn't actually do anything to expand on the why or how of our decision making. Is that correct? I'm not questioning your views, just rewording them back at you to solidify my own understanding. Maybe it would've been interesting to ask the subjects whether they still stuck to their original decision after seeing the rest of the data.