The paper describes validation of an abbreviated version of Grey-Wilson's Personality Questionnaire aimed at measuring inhibition of behaviour (STP) and its activation (SAP) in accordance with Grey's theory. The factor structure of the questionnaire is described to prove that the scales have sufficient inner correlation. The correlation of STP and SAP with Eysenk's scales, psychopathological data and negative consumption (tobacco, alcohol, drugs) corresponded with what had been predicted theoretically. In other words, Grey-Wilson's Personality Questionnaire is a reliable tool for appraisal of personality traits STP and SAP and can be instrumental in wide-scale studies of adaptability, mental health and negative consumption.