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 ...

In everyday language, the term validity is typically used to describe something as being trustworthy or legit. It's meaning ...

Stakeholders in US healthcare are increasingly seeking to measure and improve efficiency. This article describes an efficiency concept and some practical measurement challenges. We searched the ...

Assessing the presence and degree of synovitis is the cornerstone of managing patients with arthritis. Ultrasound has been ...