Measurement is the breaking up of a quantum of energy into equal units. George Herbert Mead

What does it mean “to measure” and #RaschMeasurement as a foreign language

If, in a discussion about buying a new table, your spouse were to say to you, “I measured the width of the room and …” you would not expect the conversation to degenerate immediately into a discussion about what is width, or what does measured mean, or who made your yardstick, or what units you used. But if, in a discussion with the school guidance counselor, you are told, “I measured the intelligence of your child and …” you could, and probably should, ask those same questions, although they probably won’t be any more warmly received in the guidance office than they were in the dining room.

Continue reading . . . Measurement in Science

Previous: I. Rasch’s Theory of Relativity               Next: IIIa: Abstracting Some Aspects