The development of the revised version of the Formal Characteristic of Behaviour - Temperament Inventory FCB-TI(R)

The Regulative Theory of Temperament (RTT), developed by Jan Strelau, describes human's behaviour in formal characteristics expressed in six temperamental traits: briskness, perseveration, sensory sensitivity, endurance, emotional reactivity and activity. Theory validity was supported based on operationalisation of traits via the Formal Characteristic of Behaviour - Temperament Inventory (FCB-TI). Further research revealed shortcomings in the content of the Briskness and Sensory Sensitivity scales, lack of data on Rhythmicity and the need of empirical evidence for the postulated temperamental structure. This paper describes the preparation and validation of a revised version of the FCB-TI. The item selection process was based on exploratory factor analysis and the structure of temperament was confirmed using confirmatory factor analysis. The results confirmed a seven-factor structure of temperament. The revised version of the FCB-TI(R) includes 100 items and seven scales: six analogical as in the FCB-TI, and a new one - Rhythmicity, all with a 4-point Likert response scale. The content of the Briskness and Sensory Sensitivity scales was changed. Internal consistency and test-retest reliability of the scales were satisfactory. Relations to other temperamental/personality measures were established. The FCB-TI(R) proves to be a robust operationalisation of RTT with a confirmed internal structure and acceptable psychometric properties.