Introduction to Response Surface Analysis

The Theory Response Suface Analysis (RSA) is a method from the wider field of Response Surface Methodologies (RSM). Requirements Commensurable Scales Commensurability explained as briefly as possible is that two scales are measured in the same units. In the world of Likert-scales this mostly means they are measured on the same number of points. Centered on a Common Point There is a number of ways this can be done.