Scaling (testing)

Scaling in psychophysics is a general term for various methods used to assign values to aspects of peoples experience. With the values assigned statistical testing then becomes possible. There are a variety of approaches adopted, these include:
 * Interval scaling
 * Bisection
 * Categorical estimation
 * Method of equally appearing intervals
 * Ratio scaling
 * Cross modality matching
 * Magnitude estimation
 * Method of production
 * Method of adjustment
 * Nonmetric scaling