For the last few years I’ve been teaching my journalism students a dedicated class on cognitive bias — common ways of thinking that lead journalists (and audiences and sources) to make avoidable mistakes.

Journalism is particularly vulnerable to cognitive bias: we regularly make decisions at speed; we have to deal with too much information — or extract meaning where there isn’t enough of it. Each of those situations makes us vulnerable to poor decision-making — and many of the rules that we adhere to as journalists are designed to address that.

Some cognitive biases — such as groupthink, prejudice, and confirmation bias (covered in a second post here) — are well-known, but many others are not (there are over 180 of them). That includes bias blind spot: the tendency to see how biases affect other people, but not yourself.

So if you were thinking “this doesn’t apply to me”, read on for a guide to some of the cognitive biases likely to affect journalists — from being manipulated by sources to being bad editors of our own copy — and what to do to tackle them. Continue reading →