The Journal of Educational Measurement (JEM) is a quarterly journal that publishes original measurement research, reports on new measurement instruments, reviews of measurement publications, and ...

Biology has always been an unruly science. Cells divide when they want to. Genes switch on and off like temperamental lights.

Quantum mechanics is a probabilistic theory that does not describe individual events. Yet when we perform a single measurement, we find a well-defined outcome. This apparent contradiction, known as ...

This morning on BBC Radio 4, the mathematician Roger Penrose, physicist Basil Hiley, and philosopher Simon Saunders had a lively discussion about the “measurement problem in physics” with broadcaster ...

Few would argue with Peter Drucker’s famous line that “if you can measure it, you can manage it”. In programmatic, however, things aren’t proving so simple. While campaigns are certainly being ...