# Brief, remotely delivered group ACT-RNT for impostor-related distress: a longitudinal and process-focused evaluation - URL: https://alisanburak.com/en/wcp-2026-posterler/k3852 - Language: en - Last updated: not specified - Page title: Brief, remotely delivered group ACT-RNT for impostor-related distress: a longitudinal and process-focused evaluation | WCP 2026 Summary > Brief, remotely delivered group ACT targeting repetitive negative thinking was associated with significant improvements in impostor symptoms and theoretically… This page was translated automatically from Turkish. [Read the original](https://alisanburak.com/wcp-2026-posterler/k3852) Bu sayfa, 26. Dünya Psikiyatri Kongresi'nde sunulan çalışmanın yapay zekâ desteğiyle hazırlanmış Türkçe özetidir. Çalışmanın sahibi sunan yazarlardır; atıf için orijinal kaynağa başvurun. Serbest Bildiri (Sözlü)PsikoterapiPilot boylamsal çalışma # Brief, remotely delivered group ACT-RNT for impostor-related distress: a longitudinal and process-focused evaluation Brief remote group act-rnt for impostor-related distress: a longitudinal process-focused evaluation Sunan: Andreas Larsson Ülke: Sweden Oturum: 4370 - FREE COMMUNICATIONS 18: ART, CULTURE & INNOVATIVE APPROACHES Tarih: Sat, 26.09.2026, 09:45 - 09:55 Salon: Hall K11 Brief, remotely delivered group ACT targeting repetitive negative thinking was associated with significant improvements in impostor symptoms and theoretically relevant processes of change. The study aimed to evaluate whether a brief, remotely delivered group intervention based on Acceptance and Commitment Therapy (ACT) and targeting repetitive negative thinking (RNT), a transdiagnostic process, was associated with reductions in impostor symptoms and RNT and improvements in psychological flexibility, psychological inflexibility, and cognitive fusion, as a scalable early mental health intervention. The pilot longitudinal study included 23 participants at pretreatment and posttreatment and 10 at the one-month follow-up; mixed-model analyses were based on 18 participants with analyzable repeated-measures data. Outcomes were impostor symptoms, repetitive negative thinking, psychological flexibility, psychological inflexibility, and cognitive fusion, with changes over time examined using linear mixed models and post hoc comparisons. Significant effects of time were found for impostor symptoms (F = 10.67, p < .001, eta_p2 = .464), repetitive negative thinking (F = 5.54, p = .010, eta_p2 = .307), psychological flexibility (F = 19.94, p < .001, eta_p2 = .621), psychological inflexibility (F = 11.25, p < .001, eta_p2 = .479), and cognitive fusion (F = 8.49, p = .002, eta_p2 = .401). Impostor symptoms decreased from pretreatment to posttreatment (d = 1.03) and further at the one-month follow-up (d = 2.19); psychological flexibility increased over time, while psychological inflexibility and repetitive negative thinking decreased, with the most pronounced improvement in cognitive fusion observed at follow-up. The brief, remotely delivered ACT-RNT group format shows promising preliminary associations with reduced impostor-related distress and theoretically relevant processes of change, and appears feasible and clinically meaningful; however, the findings should be interpreted cautiously given the small sample and attrition at follow-up. Bu çalışmaya nasıl atıf yapılır? APA 7: Larsson, A., et al. (2026, September 26). Brief remote group act-rnt for impostor-related distress: a longitudinal process-focused evaluation [Oral presentation]. 26th WPA World Congress of Psychiatry (WCP 2026), Stockholm, Sweden. Vancouver: Larsson A, et al. Brief remote group act-rnt for impostor-related distress: a longitudinal process-focused evaluation [oral presentation]. 26th WPA World Congress of Psychiatry (WCP 2026); 2026 Sep 23-26; Stockholm, Sweden. 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