Question

Psychological tests are often used to measure characteristics (e.g., iq) across people of different ages, who live in different places, and so on. in order that people can be properly ordered on the dimension of measurement (e.g., compare their iqs), it's important that these tests are:

Answer 1

The answer is Normed Normalisation in statics is method to adjust the values according to an adjusted scale.It is done to bring the entire probability distribution in alignment. In simpler terms its important to define a criteria for different cases so that they could be measured on single scale equally .