Jarreb! · How we check

How we check experiments

Every experiment shows a small “Who checked this?” box at the bottom. It tells you honestly how far that experiment has been checked, from listing sources to review by an expert.

Sources listed

The page names where its numbers and facts come from, in its Sources section, so you can check them yourself.

Reviewed by Jarreb

Mariam Alzaabi, who runs Jarreb, has read the experiment against its sources and checked the numbers by hand. The box shows the date.

Expert reviewed

A named specialist, such as a doctor, an engineer or a safety officer, has reviewed it and agreed to be named. The box shows their name, role and date.

How experiments are made

Found a mistake?

Tell us. We fix errors and update the date in the box.

Are you an expert?

If you work in health, safety, engineering, finance or education and would like to review an experiment in your field, we would love to hear from you. You choose whether your name is shown.