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ADOS-2 Specialist Certification
A rigorous, practical two-day certification in the ADOS-2 — the gold-standard autism observational assessment. Covers all five modules, coding, scoring, and Comparison Score interpretation.
From £1,295 — a two-day intensive delivered live online via Zoom.
★★★★★ Rated Excellent on Trustpilot · 1,500+ clinicians trained
Live training from practising specialistsFree date transfer if plans change · CPD certificate on completion
★★★★★ Rated Excellent on Trustpilot.avif)
Staff trainedAbout the ADOS-2 Specialist Certification
This two-day specialist certification gives clinicians a rigorous, practical foundation in the ADOS-2. The course covers all five modules from Toddler through Module 4, including module selection, administration, coding, scoring, and Comparison Score interpretation — delivered live online via Zoom.
The ADOS-2 is widely recognised as the gold-standard, semi-structured assessment for evaluating social communication and restricted or repetitive behaviours associated with autism spectrum conditions.
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Course Benefits
Master Every ADOS-2 Module
Build fluency across all five modules, from Toddler through Module 4, including module selection based on age and expressive language level.
Apply Standardised, Defensible Coding
Learn to apply ADOS-2 coding principles correctly, including codes 0–3 and special codes 7, 8 and 9 in line with the WPS protocol.
Score and Interpret with Confidence
Calculate the Total Algorithm Score, apply the correct cut-off table, and generate the Comparison Score for Modules 1–3.
What You'll Learn: Key Course Modules
Foundations & Module Selection
Build a strong foundation in the ADOS-2's rationale and structure. This module explores:
This module builds the foundation for confident, defensible module selection.
Administration & Observational Targets
This practical module covers live administration across all five ADOS-2 modules. You will learn:
Through clinical vignette discussions, you will develop confidence in live ADOS-2 administration.
Coding, Scoring & Reporting
This final module focuses on standardised coding, scoring, and defensible reporting. You will cover:
By the end of this module, you will be able to code, score, and report ADOS-2 assessments with clinical confidence, ready for the final examination.
Learning Objectives
Understand the ADOS-2's Foundations
Describe the ADOS-2's rationale, structure and psychometric properties and its role within a comprehensive, multi-disciplinary autism assessment.
Select the Right Module
Select the appropriate ADOS-2 module for any individual based on chronological age and expressive language level, using the module-selection decision framework.
Recognise Key Observational Targets
Recognise and describe key observational targets across all five ADOS-2 modules — Toddler Module through Module 4 — including the social affect and RRB domains.
Apply Standardised Coding
Apply ADOS-2 coding principles in a standardised and defensible manner, correctly using codes 0–3 and special codes 7, 8 and 9 in accordance with the WPS protocol.
Calculate Scores & Classifications
Calculate the ADOS-2 Total Algorithm Score, apply the correct cut-off table to yield a three-category classification, and generate the Comparison Score for Modules 1–3.
Interpret Results in Clinical Context
Interpret classification and Comparison Score results within a broader clinical formulation, integrating developmental history, cognitive/language assessment, and self-report data.
Avoid Common Interpretation Pitfalls
Identify and avoid the five most common interpretation pitfalls: anchoring on the score, single-session certainty, ceiling effects, examiner drift and confirmation bias.
Write Defensible Reports
Write a person-centred, legally defensible ADOS-2 report section, using appropriate language and communicating uncertainty where it exists.
Apply Neurodiversity-Affirming Practice
Apply neurodiversity-affirming, culturally competent and ethically grounded principles throughout assessment, feedback and reporting.
Plan Your Path to Ongoing Competence
Describe a clear post-course pathway to ongoing competence, including supervised practice, peer coding review, recording-based reflection and refresher training.
Taught by a specialist who assesses every week.
Delivered live by a practising specialist — the same clinician running ADOS-2 assessments right now.
Book Your Place
All sessions run as two-day intensive programmes, delivered live online via Zoom.
What's included in your course fee.
Register Your Interest
Leave your details and the team will be in touch to help you choose the right course and date — no commitment.
What clinicians say about this course
The trainer delivered an outstanding presentation,clear, engaging, and clinically relevant. The course was exceptionally well-structured, with a logical flow and practical, evidence-based content throughout. His expertise and passion were evident, making the learning experience both informative and inspiring. I would highly recommend this course to any clinician seeking to enhance their ADHD practice.
This training program has been truly transformative. The approach goes far beyond theory, providing practical, compassionate, and evidence-informed strategies that help individuals understand how ADHD presents in everyday life. What stood out most was the focus on strengths rather than deficits. Instead of trying to “fix” people, the training empowers individuals, professionals, and organisations to work with ADHD brains rather than against them. The tools shared were clear, actionable, and immediately applicable, whether supporting clients, employees, or students. The course also created a deeper understanding of neurodiversity while offering practical techniques to improve focus, productivity, communication, and wellbeing. It fostered a strong sense of empathy and inclusion, something greatly needed in workplaces and educational settings. I would highly recommend this training to anyone wanting to better understand ADHD and learn practical ways to support neurodivergent individuals to thrive.
Fantastic course, thoroughly enjoyed it. Comprehensively covers diagnosis and management. The trainer is a great course lead, delivers information in a structured, informative yet engaging way. Makes through material easy to digest. Good balance of content and active participation. Highly recommend.
I found the ADHD Assessor Course to be an incredibly valuable and well-structured training experience. It provided a comprehensive overview of ADHD assessment protocols, diagnostic criteria, and the practical skills required to conduct thorough and patient-centred evaluations. The content was evidence-based and clinically relevant, with a strong emphasis on both accuracy and empathy in the assessment process. The course facilitators were knowledgeable and approachable, offering real-world insights and support throughout. I now feel much more confident in my ability to contribute meaningfully to ADHD assessment pathways and support individuals in accessing timely and appropriate care. I would highly recommend this course to any healthcare professional looking to expand their expertise in ADHD assessment.
found the ADHD Assessor Course to be an incredibly valuable and well-structured training experience. It provided a comprehensive overview of ADHD assessment protocols, diagnostic criteria, and the practical skills required to conduct thorough and patient-centred evaluations. The content was evidence-based and clinically relevant, with a strong emphasis on both accuracy and empathy in the assessment process. The course facilitators were knowledgeable and approachable, offering real-world insights and support throughout. I now feel much more confident in my ability to contribute meaningfully to ADHD assessment pathways and support individuals in accessing timely and appropriate care. I would highly recommend this course to any healthcare professional looking to expand their expertise in ADHD assessment.
I recently attended the ADHD Assessment and Diagnosis Course, and it was an incredibly informative and educational experience. The training was well-structured, evidence-based, and delivered in a clear and engaging way. It provided practical guidance on the assessment process, diagnostic criteria, and clinical considerations. After completing the course, I feel much more confident in carrying out ADHD assessments in clinical practice. I would highly recommend this course to healthcare professionals looking to strengthen their knowledge and skills in ADHD assessment and diagnosis.
Frequently asked questions
A few of our frequently asked questions about this course.
This course is designed for psychiatrists, clinical and educational psychologists, paediatricians, speech and language therapists, occupational therapists, mental health nurses, health visitors, social workers, psychotherapists, researchers with a relevant background, and graduate trainees working under qualified supervision.
The ADOS-2 Specialist Certification is a Two-Day Intensive Training Programme, delivered live online via Zoom. It runs for a total of 14 hours, from 09:00–17:00 UK time on both days, with a maximum group size of 20 learners.
The course concludes with a 30-minute final examination consisting of 20 multiple-choice questions, with an 80% pass mark. On successful completion, you'll receive a recognised CPD certificate.
You'll cover all five ADOS-2 modules from Toddler through Module 4, including module selection, administration, coding, scoring, and Comparison Score interpretation. The course also addresses differential diagnosis, DSM-5-TR and ICD-11 frameworks, integration with the ADI-R, report writing, and neurodiversity-affirming practice.
With demand for ADHD testing rising each year, private ADHD assessments have become a valuable income stream for qualified practitioners, with professionals able to charge up to £1,500 per assessment. This qualification offers flexibility, allowing you to incorporate assessments into existing work commitments.
Become ADOS-2 certified in two days.
Free date transfer if plans change. Questions first? Register your interest and the team will help you choose.
