“Women just choose lower-paid jobs” is a common answer to the gender pay gap. Here’s how comparing people in the same job can hide the rest of the story.

It's one of the first questions we ask when we meet someone. For parents at home with young children, the answer is often "no", and official data agrees. This post explains the McNamara fallacy, how it leaves unpaid work out of the numbers, and what to do about it if you work with data about people.

This is something I often hear about health. But people can only choose from the options they have, and data about people often reflects those options. This post explains the determinants of health and what they mean for anyone who analyses data about people.

Success stories and datasets can leave out the people who didn't make it. How survivor bias props up meritocracy, and how to spot it in your data.

Each generation judges the world by the conditions it first met. Shifting baseline syndrome, a concept from fisheries science, shows why older and younger generations talk past each other on housing in Aotearoa.