Trueness

Trueness is like telling the truth. Just like how we always try to tell the truth to our friends and family, things can also be true or untrue in the world around us. Trueness is all about measuring things and how accurate those measurements are.

For example, when we are trying to measure how tall someone is, we use a ruler. If we use a ruler that is broken or not straight, we might get a wrong measurement. This means our measurement would not be true or accurate. But if we use a straight ruler, we can measure the person's height more accurately and get a true measurement.

Trueness is really important in science and medicine because when we are trying to figure out how things work or how to fix a problem, we need to make sure we have accurate information. If our information is not true, we might make the wrong decisions and make things worse.

So, just like how we always try to tell the truth, scientists and doctors always try to measure things accurately so they can make the right decisions and help keep us healthy and safe.