Although this is a good post, and the information presented sounds right based on what I remember from my psychology classes, I would also want a few references, particularly for readers who aren't familiar with the subject.

In my view, the point of writing a Less Wrong post is to share one's knowledge with others, and that includes organizing and presenting the information one is sharing in an efficient format. This way, an author of a post can spend a bit of time (e.g. Googling) and save many readers that same time expenditure. Consequently, we maximize the rationality learned by everyone per unit of time.