Abstract
The response consistency, semantic consistency and response variability are a few examples of terms, which are used for the extent of variability of responses to the items of personality tests with the same meaning. However, similar differences prevail both in the specific author's concept of this variable and in the manner in which it is measured.
The article summarizes empiric knowledge concerning the response consistency, manners measured by various authors, and its relation to other variables. This overview supports the thesis that despite the differences in approaches to the topic, the response consistency is a stable psychological variable with possible psychodiagnostic value different from the prevalent interpretation of the inconsistency responding as a measurement error.
Response consistency may be in a broader sense related to personal integrity.