Round 1 of 10 Right 0 Best –

How to play

Goal

A colour name appears in coloured ink. Tap the colour of the ink, not the word. Try to get all ten right.

How it works

Tips

The history of Colour Word

In 1935 the American psychologist John Ridley Stroop showed that people name the ink colour of a word more slowly when the word spells a different colour. The effect is named after him and is still one of the most studied results in psychology: it shows how reading is so automatic that it gets in the way. Researchers use versions of it to study attention and self-control.