The measurement of joint range of motion (ROM) is a cornerstone of clinical assessment, rehabilitation and biomechanical research. Reliable and accurate quantification of joint movement is essential ...

Metrology is the science of precise measurement. It ensures accuracy and consistency across scientific, industrial, and engineering fields. Calibration is the process of aligning measurement ...

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) ...