Variability as a property of evaluation

In the article the definition of the term «variability of evaluation» is considered from the point of view of the evaluation theory by N.A. Baturin. Understanding of the evaluation variability is considered in the different approaches, both domestic and foreign authors. It was determined after the analysis of researches that the concept of «variability» entails several meanings: variability refers to the «original position that a person undergoes continuous changes throughout a person's life»; the variability refers to the variety, variability of symptoms, etc; the variability refers to the instability, volatility estimates associated with situational errors; the variability is rate change in response to changes in the object. Generally the variability of evaluation is understood on the one hand, as a property of evaluation on the other hand, as an individual way of evaluation. The article highlighted two components of the variability: personal (evaluative style as the propensity to quickly change the rates when changes appear in the object and / or in the assessment base) and situational (changes of rates under the influence of context (situational factors)). Also it is considered issues of the variability connection with accuracy and adequacy of evaluations.