In my previous blog post, I noted that reliability and validity are two essential properties of psychological measurement. Measures of intelligence, personality, vocational interests, and so forth ...

Technological innovations can seem relentless. In computing, some have proclaimed that "a year in machine learning is a century in any other field." But how do you know whether those advancements are ...

This resource is divided into 4 parts: 1. Understanding Validity and the different types – External, internal, ecological, temporal and population. Each type comes with a high- and low-validity ...