20 Jan 2022 webinar at 7 pm: The Trauma and Dissociation Symptoms Interview (TADS-I): Introduction and updated information

21 marraskuu 2021

ESTD is proud to continue the series of webinars on trauma-related disorders. An emphasis on available instruments to assess for dissociative symptoms and disorders is an important focus in this series. This webinar will familiar participants to the recognized clinical instrument, Trauma and Dissociation Symptoms-Interview (TADS). The webinar will include updated information relating to the use of this contemporary instrument for the assessment of traumatized individuals.

The TADS-I (Boon & Matthess, 2016) is a clinician-administered semi-structured interview to assess dissociative symptoms and disorders and other trauma-related symptoms. This interview differs from other semi-structured interviews in several ways: it enables the clinician to make DSM-5 and ICD-11 diagnoses; thus, it also includes a large section on somatoform dissociative symptoms. Secondly, it includes a section on other trauma-related symptoms in order to: (1) develop a more complete clinical picture of possible comorbidity, including symptoms of PTSD and complex PTSD; (2) achieve greater insight into the (possible) dissociative organization of the personality; and (3) differentiate complex dissociative disorders from personality disorders and other disorders, such as a (complex) posttraumatic stress disorder (CPTSD), mood disorder or psychotic disorders. Finally, the TADS-I aims at making a distinction between symptoms referring to a division of the personality and symptoms that may involve other alterations of consciousness. Therefore, it also aims assisting the interviewer in differentiating imitated DID from genuine DID.

We have invited the developer of the interview, Suzette Boon, PhD, to present the TADS-I. Clinical vignettes and video clips will be used as illustration in the application of the TADS-I to practice.

We are excited to invite clinicians and researchers to this educational webinar.

January 20th 2022 (GMT+1, Brussels / Berlin / Warsaw / Madrid time), at 7.00-8.30 p.m.


Registration closed.

There is a fee of 20 euros for participation in the webinar. Payment should be made to the following bank account:

Name: European Society for Trauma and Dissociation
Account Number: NL02 INGB 0006 5231 37
adres:  Coldplaystraat 12 6663HX LENT The Netherlands
transfer title: webinar January 2022


Registration and payment is possible until January 17th, 2022.

NB: Please be aware of inter-country money transaction time. ESTD will not be responsible of payments later than January 17th, 2022. However, payments received too late will be recompensed with the webinar recording sent by e-mail.

Cancellation is possible before the registration and payment deadline. By timely cancellation the fee will be reimbursed.


The recording of this webinar will be available later as video-on-demand at the same price. But clinical video clips used as illustration at the online webinar will not be available in the recording.


Active participants of the online webinar will receive a certificate of attendence. Certificates will not be issued to people who have merely watched the recording of this event.

The certificate will be taken into consideration when applying for an ESTD certificate in diagnosing trauma-related disorders and the referral system (currently under development).



Suzette A. Boon PhD, 1949, is a clinical psychologist, and psychotherapist specialized in the treatment of chronic traumatization and dissociative disorders. She translated and validated the Dutch version of the Structured Clinical Interview for DSM-IV Dissociative Disorders (SCID-D) and received a PhD for her thesis “Multiple Personality Disorder in the Netherlands” in 1993. She has published several books, book chapters and many articles both on diagnosis as well as treatment of dissociative disorders. She has developed a skills training manual for patients with a complex dissociative disorder. The English version of this manual Coping with Trauma-Related Dissociation with Kathy Steele, MN, CS and Onno van der Hart PhD has been published in March 2011 (Norton publishers). She has developed a new semi structured interview for complex dissociative disorders and trauma related symptoms: the “Trauma and Dissociation Symptoms Interview (TADS-I) “. A validation study has been started.

She is co-author of the book “Treating Trauma-Related Dissociation, A Practical, Integrative Approach” (Steele, Boon & Van der Hart, 2017) that won the Pierre Janet writing award of ISSTD in 2017. In 2022 a new book will be published on assessment: “Assessment of Traumarelated Dissociation, introducing the TADS-I (Boon, 2022).

She is currently working working in private practice.

She is a trainer and supervisor and teaches in many different countries.

She is co-founder of the European Society for Trauma and Dissociation (ESTD) and was the first president of this Society.

The International Society for the Study of Trauma and Dissociation (ISSTD) granted her the David Caul Memorial Award in 1993, the Morton Prince Award in 1994 and the President’s Award of distinction and the status of fellow in 1995 for her contributions to diagnosis, treatment, research and education in the field of dissociative disorders. In 2009 She received the Life Time Achievement Award and in 2011 the Pierre Janet Writing Award for the book Coping with trauma-related Dissociation a skills training for patients and their therapists.

In 2017 she received the Pierre Janet Writing Award as second author of the book Treating Trauma-related Dissociation. A practical integrative approach.

Boon Training & Supervision www.suzetteboon.com

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