The “Additive conjoint measurement theory” makes fundamental measurement (measurement which is not derived from other measurements, and which is produced by an additive measurement operation) a possibility in the social sciences, where all observations are ordinal.
Main topics:
- The theory of additive conjoint measurement: a theoretical background for the scientific measurement of latent variables
- The Rasch models for scientific measurement
- Specific objectivity
- Sufficiency of the total score
- Unidimensionality
- Local independence
- Monotonicity
- Differential item functioning (DIF)
