Shyness Measurement Validity Explained in Simple Language How do we know when a personality test is valid? Posted November 17, 2017 ...

Validity refers to how well a test actually measures what it was created to measure. Reliability measures the precision of a test, while validity looks at accuracy.

The validity of two lifestyle typologies, SRI's Values and Lifestyles system and the Lastovicka et al. Drinking-Driving typology, are examined empirically. Each typology is measured by three methods.