Selin KARAKAYA, Irem Akyol ERTEKIN, Bedriye ONCU
Klinik Psikiyatri Dergisi - 2026;29(2):97-104
Objective: Delay-related processes refer to individuals' affective, cognitive, and behavioral responses to waiting situations, often characterized by impatience, frustration, and a preference for immediate rewards. The aim of this study was to evaluate the Turkish version's validity and reliability of the Quick Delay Questionnaire for Adults (QDQ-A), a self-report tool developed to assess delay-related characteristics in adults with ADHD. Method: The study included 109 adults diagnosed with ADHD (mean age = 26.30 +/- 7.19) and 79 controls (mean age = 29.85 +/- 6.95). Participants completed the Adult ADHD Self-Report Scale (ASRS), the Hospital Anxiety and Depression Scale (HADS), and the QDQ-A. Results: Confirmatory factor analysis revealed a two-factor structure consistent with the original version; delay aversion and delay discounting. Cronbach's alpha coefficients indicated good internal consistency: .85 for the delay aversion subscale and .70 for the delay discounting subscale. Test-retest analysis demonstrated acceptable reliability (p< .001). Within the ADHD group, QDQ-A subscale scores were positively correlated with ASRS subscales, a weak but statistically significant correlation was observed between the delay discounting subscale and HADS depression scores ( rho =.193, p=.045). Discussion: The present findings support the Turkish version of the QDQ-A as a valid and reliable tool for use in adult populations.
