Davranışsal İnhibisyon Sistemi ve Davranışsal Aktivasyon Sistemi Ölçeğinin Türk Toplum Örnekleminde Psikometrik Özellikleri
Psychometric Properties of the Behavioral Inhibition System and Behavioral Activation System Scale in Turkish Community Sample

Summary/Abstract: The aim of this study was to assess the validity and reliability of Behavioral Inhibition System (BIS) and Behavioral Activation System (BAS) scale in Turkish community sample and to examine the factor structure of the scale according to revised Reinforcement Sensitivity Theory (RST). The study was done with a community sample of 441 participants, 237 female and 204 male, in the range of 18-65 years. The confirmatory factor analysis was done for both 4 factor structure model mentioned in the original RST and for 5 factor structure model suggested in the revised RST. The goodness of fit indexes of 5 factor model were at acceptable levels and the model was confirmed. For convergent validity, Eysenck Personality Questionnaire Revised-Abbreviated Form (EPQR-A) was applied to 220 participants and Trait Anxiety Inventory (STAI-II) was applied to 66 participants from the research sample. At reliability analysis of scale, as the result of internal consistency of five subscales, Cronbach alpha coefficients of the subscales were found between 0.55 and 0.74. The results showed that BİS/BAS scale has powerful psychometric evidences and in community sample it is a valid and reliable scale for assessing Behavioral Inhibition, Behavioral Activation and Fight, Flight, Freeze systems which are neurobiological-based systems in revised RST.

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