NEW YORK—As the TV industry grapples with the measurement problems that have been produced by rapid changes in the way people watch programming, the Coalition for Innovative Media Measurement (CIMM) ...

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 ...

Facebook isn't the only one with a measurement problem (though it may well be the most publicized.) The problem exists across apps everywhere — and before you jump to conclusions, remember this.

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 ...