Konstantin is recognized for his theory of Trait Emotional Intelligence (TraitEI)
He is the first-ever Professor of Psychometrics at UCL, the birthplace of psychometrics.

Konstantin is the developer of the major system of Psychobionomy as well as of TraitEI theory and of the family of Trait Emotional Intelligence Questionnaires (TEIQue), which are used in commercial and research settings globally. He lectures internationally on Psychobionomy, Trait Emotional Intelligence, personality, psychometrics, and philosophy of mind.
For a full biography, see:
Petrides, K. V. (2019). In Zeigler-Hill V. & Shackelford T. (Eds.) Encyclopedia of Personality and Individual Differences. Springer, Cham.