The Drexel Defusion Scale: Reliability and Validity of the Turkish Version

Abstract

Cognitive defusion is one of the components of psychological flexibility inAcceptance and Commitment Therapy. The purpose of this study was to translatethe Drexel Defusion Scale (DDS) into Turkish and test its psychometric properties.This two-phase study was carried out with two groups of participants. The firstphase, Exploratory Factor Analysis (EFA) included 370 university students (218female, 152 male). The second phase, Confirmatory Factor Analysis (CFA) anddivergent validity consisted of 715 university students (351 female, 364 male). TheDDS measures the ability to achieve a distance from inner experiences like thoughtsand feelings, and it consists of 10 scenarios on a six-point Likert-scale ranging from0 (Not at all) to 5 (Very much). The DDS has a unidimentional factor structure. TheCFA results confirmed the one-factor structure of Turkish DDS (T-DDS). The T-DDSalso yielded satisfactory (α > .80) internal consistency and test-retest reliability (α =.81). Thus, findings revealed satisfactory reliability and validity evidence for the TDDS.