Those of us in the business of psychological measurement use the terms reliability and validity a lot. You've probably seen those terms on the Psychology Today website (they appear thousands of times) ...

Continuity of care is essential to the clinician/patient relationship within family medicine. However, researchers have few ways to track continuity of care as a measurement of clinical quality.

Objectives Critically appraise and summarise the measurement properties of knee muscle strength tests after anterior cruciate ligament (ACL) and/or meniscus injury using the COnsensus-based Standards ...