““Picture a group where people express their views vigorously and passionately, even arguing with one another. If the group performs well, participants might reasonably look back and say that open and forthright expressions of opinion were a key reason for success. They’ll say: We were honest, we didn’t hold back—and that’s why we did so well! We had a good process! But what if the group’s performance turned out to be poor? Now people might recall things differently. We argued and fought. We were dysfunctional. Next time we should follow a respectful and disciplined process. But now imagine a group where people are calm, polite, and respectful of one another. They speak quietly and in turn. If the group does well, participants might look back and credit their courteous and cooperative nature. We respected one another. We didn’t fight. We had a good process! But if the same group’s performance was poor, people might say: We were too polite. We censored ourselves. Next time, we should be more direct and open, not so concerned about one another’s feelings. The fact is, a wide variety of behaviors can lead to good decisions. There’s no precise way to engineer an “optimal” discussion process. We may try to avoid extremes, sure, but between those extremes is a wide range of behavior that might be conducive to success. And because we really don’t know what makes an optimal decision process, we tend to make attributions based on other things that are relevant and seemingly objective—namely, what we’re told about performance outcomes.””