Trauma shows up in many forms. But not all fit neatly into a PTSD diagnosis.
So if you’ve ever felt uncertain about where a client’s trauma symptoms fit diagnostically, you’re not alone.
That’s why Dr. Caleb Lack put together this 3-hour training, so you can get a clear, comprehensive review of the DSM-5-TR™ trauma and stressor-related disorders category, including key criteria, associated features, and demographic patterns.
Dr. Lack will break it all down, cut through the dense manual pages of the DSM, and explore disorders across the lifespan including PTSD, Reactive Attachment Disorder, Disinhibited Social Engagement Disorder, Acute Stress Disorder and other specified trauma- and stressor-related disorders.
PLUS Dr. Lack will show you how to apply the DSM-5-TR™ in real-world settings and recognize subtle differences between overlapping trauma presentations.
Whether you’re a newer therapist looking for clear guidance or an experienced clinician wanting a smart, time-saving refresher this training is here to help.
Register now!
All members of the PESI, Inc. planning committee have provided disclosures of financial relationships with ineligible organizations and any relevant non-financial relationships prior to planning content for this activity. None of the committee members had relevant financial relationships with ineligible companies or other potentially biasing relationships to disclose to learners. For speaker disclosures, please see the faculty biography.
NOTE: Each purchase includes CE credit for one individual (participants in full attendance will be able to print the certificate of completion after passing the online post-test (80% passing score) and completing the evaluation). Instructional methods will include PowerPoint, didactic lecture, Q&A, and others.
Continuing Education Information: Credits listed below are for full attendance at the live, interactive webinar only. This webinar is being broadcast live in real-time and must be attended live, in its entirety, in order to earn credit. You will be able to type questions to the speaker. The speaker will see the questions and address them during the presentation as time allows. Please note, your licensing board dictates whether web-based activities are an acceptable form of continuing education, as well as which credit types are acceptable for continuing education hours. Please refer to your licensing board's rules and regulations. If your profession is not listed, please contact your licensing board to determine your continuing education requirements and check for reciprocal approval. For other credit inquiries not specified below, please contact info@pesi.com or 800-844-8260 before the event.
Materials that are included in this course may include interventions and modalities that are beyond the authorized practice of your profession. As a licensed professional, you are responsible for reviewing the scope of practice, including activities that are defined in law as beyond the boundaries of practice in accordance with and in compliance with your profession's standards.
For Planning Committee disclosures, please see the statement above. For speaker disclosures, please see the faculty biography.
Earn up to 3.0 CE hours. Please see below, for more details, as credit amounts vary by jurisdiction and profession.
PESI, Inc. is approved by the Canadian Counselling and Psychotherapy Association to offer continuing education for counsellors and psychotherapists. PESI, Inc. maintains responsibility for the program. This activity is approved for 3.0 credit hours.

PESI, Inc., #1062, is approved as an ACE provider to offer social work continuing education by the Association of Social Work Boards (ASWB) Approved Continuing Education (ACE) program. Regulatory boards are the final authority on courses accepted for continuing education credit. ACE provider approval period: January 27, 2026 - January 27, 2029. Social workers completing this course receive 3.0 continuing education credits.
Course Level: Format: . Full attendance is required; no partial credits will be offered for partial attendance.
Canadian Social Workers: Canadian provinces may accept activities offered by providers approved by the ASWB ACE program for ongoing professional development.
This activity qualifies for 180 continuing education minutes as required by many national and local licensing boards and professional organizations. Save your activity advertisement and certificate of completion, and contact your own board or organization for specific requirements.

This course has been approved by PESI, Inc., as a NAADAC Approved Education Provider, for educational credits. NAADAC Provider #77553. PESI, Inc. is responsible for all aspects of their programming.
This course offers 3.0 continuing education contact hours in the Counseling Services skill group. Full attendance is required; no partial credit will be awarded for partial attendance.

PESI, Inc. is accredited as a provider of nursing continuing professional development by the American Nurses Credentialing Center’s Commission on Accreditation. Nurses in full attendance will earn 3.0 contact hours. Partial contact hours will be awarded for partial attendance.
Caleb W. Lack, PhD, is a Professor of Psychology and the Counseling MA program coordinator at the University of Central Oklahoma.
A licensed clinical psychologist, Dr. Lack specializes in the treatment of children and adults with anxiety disorders, obsessive-compulsive and related disorders, and posttraumatic stress. He is regularly consulted for and interviewed by national, and international media outlets, including The New York Times, The Atlantic, and more.
Dr. Lack is also a best-selling author or editor of eight books on topics from psychopathology to critical thinking and pseudoscience to racism and sexism in early psychology. He has authored more than 65 scientific publications relating to the assessment and treatment of psychological problems such as Obsessive-Compulsive Disorder, Tourette’s Syndrome, pediatric mood disorders, and posttraumatic stress.
An internationally sought-after clinical trainer and consultant, Dr. Lack has conducted workshops for clinicians across North and South America, Europe, and east Asia.
Speaker Disclosures:
For live CE credit, you must watch the live webcast in its entirety at its scheduled time and complete the CE quiz and evaluation within one week. You will have access for 90 days after the program for review.
Please note: There will be one 15-minute break mid-afternoon. Actual break start times are at the discretion of the speaker. A more detailed schedule is available upon request.
Visit our FAQ page at https://www.pesicanada.ca/faq or contact us at https://www.pesicanada.ca/contact-us.
The trauma and stressor related disorder category in DSM-5-TR™
Criteria, associated features, and demographics for specific disorders
Criticisms and controversy
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