Unlock expert-level proficiency in diagnostic assessments with our ADIR and ADOS-2 training programs, designed specifically for clinicians. These evidence-based tools are essential for the accurate assessment of autism spectrum disorders.
Our comprehensive courses provide in-depth instruction on administration, scoring, and interpretation, ensuring you gain the confidence and skills to enhance your clinical practice. Join us for a transformative learning experience that will elevate your ability to diagnose and support individuals with autism.
Training for Health Professionals
ADIR Training
(2 Day Online Course)
£395
2 Day Online Course
Neuroaffirmative and Inclusive Training
CPD Certificate
In-depth ADIR training
WPS Accredited Tools
Expert-Led Learning
Virtual & Interactive
ADOS-2 Training
(3 Day Online Course)
£550
3 Day Online Course
Neuroaffirmative and Inclusive Training
CPD Certificate
ADOS-2 (Modules 1-4)
WPS Accredited Tools
Expert-Led Learning
Virtual & Interactive
Combined Training
(5 Day Online Course)
£895
5 Day Online Course
Neuroaffirmative and Inclusive Training
CPD Certificate
Both ADIR & ADOS-2
WPS Accredited Tools
Expert-Led Learning
Virtual & Interactive
ADIR Training
(2 Day Online Course)
£395
2 Day Online Course
Neuroaffirmative and Inclusive Training
CPD Certificate
In-depth ADIR training
WPS Accredited Tools
Expert-Led Learning
Virtual & Interactive
ADHD Assessment and Treatment Management Training
(2 Day Online Course)
£800
2 Day Online Course
Neuroaffirmative and Inclusive Training
CPD Certificate
ADHD Powerbank (DIVA Foundation) tools and resources
Expert-Led Learning
Virtual & Interactive
Post-Training Online Community
ADOS-2 Training
(3 Day Online Course)
£550
3 Day Online Course
Neuroaffirmative and Inclusive Training
CPD Certificate
ADOS-2 (Modules 1-4)
WPS Accredited Tools
Expert-Led Learning
Virtual & Interactive
Training Dates
Autism Training
Combined ADOS-2/ADI-R: 19th - 23rd January 2026 - SOLD OUT
Combined ADOS-2/ADI-R: 23rd -27th February 2026 - SOLD OUT
Combined ADOS-2/ADI-R: 23rd - 27th March 2026 - 2 spaces left
Combined ADOS-2/ADI-R: 20th - 24th April 2026 - Limited spaces left
Combined ADOS-2/ADI-R: 4th - 8th May 2026
Combined ADOS-2/ADI-R: 22nd - 26th June 2026
Combined ADOS-2/ADI-R: 27th -31st July 2026
Combined ADOS-2/ADI-R: 24th - 28th August 2026
ADHD Assessment & Treatment Management Training Course
Saturday & Sunday - 24th & 25th January 2026
Saturday & Sunday - 28th Feb & 1st March 2026
Saturday & Sunday - 21st & 22nd March 2026
Sarah Phelan, Neurodiversity Expert and Founder
MEET THE FOUNDER
The Gold Standard for Autism and ADHD Assessor Training
Choosing the right assessor training isn’t just about the tool - it’s about trusting the people behind it.
At Autism Services Group (ASG), we are the only organisation globally that offers training in ADOS-2, ADI-R, and DIVA-5, plus providing diagnostic services for both Autism and ADHD. We practice what we preach.
Founded by Sarah Phelan, a recognised neurodiversity expert and practising assessor, ASG combines clinical depth with personal guidance and real-world credibility.
Our programmes don’t just teach — they prepare you for real diagnostic work, supported by a team that trains, assesses, and leads in the field every day.
A Little More Detail
Explore the nuts and bolts of our training options below! Crave more insights? Dive into our FAQ's section for crystal-clear explanations. Still curious? Send us a note – we're here to chat!
ADIR Training
This is a 2-day virtual course run by Sarah supported by Areeba with WPS accredited resources, used to guide the trainee through implementing and utilising the ADIR. The ADIR is the leading tool across the world to gather relevant information used in the formulation of an autism diagnosis against both the DSM-5 and ICD-10/ICD-11.
Format of the day
The day begins at 9am and finishes at 5pm. there will be two 15-minute breaks and 30 minutes for lunch. Jo and Sarah are keen to embrace participation so there will be time allocated for questions. Our training also aim to be neuroaffirmative and we welcome neurodivergent professionals onto training, adapting formats and engagement to suit needs.
After training
At the end of this course, you will be a fully accredited ADIR assessor against gold standard Nice guidelines and certificates will be issued to reflect this and the CPD credits gained by attending.
Our courses all include post-training support and access to our online training platform for two months after training to ensure you feel supported in your new qualification.
ADOS-2 Certified Training
This is a virtual 3-day virtual course run by Sarah supported by Areeba with WPS accredited tools used to guide the trainee through implementing and utilising the ADOS modules 1-4. The ADOS-2 is an essential tool used to gather relevant observational information used in the formulation of autism diagnosis against the DSM-5 and ICD-10/ICD-11.
Format of the day
The day begins at 9am and finishes at 5pm, there will be two 15-minute breaks and 30 minutes for lunch. Jo and Sarah are keen to embrace participation so there will be time allocated for questions. Our training also aim to be neuroaffirmative and we welcome neurodivergent professionals onto training, adapting formats and engagement to suit needs.
After training
At the end of this course, you will be a fully accredited ADOS modules 1-4 assessor against gold standard NICE guidelines and certificates will be issued to reflect this, and the CPD credits gained by attending.
Our courses all include post-training support and access to our online training platform for two months after training to ensure you feel supported in your new qualification.
Combined ADIR and ADOS-2 Certified Training
This is a virtual 5-day virtual course run by Sarah supported by Areeba which qualifies participants in both main components of autism assessment: the ADIR and ADOS-2.
The first 2 days focus on the ADIR with WPS accredited resources used to guide the trainee through implementing and utilising the ADIR as the leading tool to gather relevant information used in the formulation of autism diagnosis against the DSM-5 and ICD-10/ICD-11.
The next 3 days utilise the WPS accredited tools to guide the trainee through implementing and utilising the ADOS modules 1-4 as essential tools to gather relevant information used in the formulation of autism diagnosis against the DSM-5 and ICD-10/ICD-11.
Format of the day
All teaching days begin at 9am and finish at 5pm, there will be two 15-minute breaks and 30 minutes for lunch. Jo and Sarah are keen to embrace participation so there will be time allocated for questions. Our training also aim to be neuroaffirmative and we welcome neurodivergent professionals onto training, adapting formats and engagement to suit needs.
After training
At the end of this course you will be a fully accredited autism assessor, being able to conduct a developmental history and an observational assessment against gold standard NICE guidelines. Certificates will be issued to reflect this, and the CPD credits gained by attending.
Our courses all include post-training support and access to our online training platform for two months after training to ensure you feel supported in your new qualification.
ADHD Diagnosis & Assessment Training
This is a virtual 1-day virtual course run by Sarah supported by Lynda with ADHD Powerbank tools designed to guide professionals through the implementation of best-practice ADHD assessment approaches.
Using recognised clinical frameworks, trainees will learn how to conduct structured diagnostic interviews, apply validated rating scales, and interpret results in line with NICE guidelines. The course focuses on both child and adult ADHD assessments, emphasising differential diagnosis and comorbidities such as autism and mental health conditions.
Format of the Day
Each day begins at 9am and finishes at 5pm, with breaks in between. Sarah and Lynda encourage active participation, with plenty of time for case discussion and Q&A.
The training is fully neuroaffirmative, and we welcome neurodivergent professionals by adapting engagement formats and materials to suit different learning needs.
After Training
By the end of this course, you will be a fully trained ADHD assessor, equipped to deliver high-quality ADHD assessments in line with NICE and UK best-practice standards. You will receive a certificate of completion.
Ongoing post-training supervision and access to our online community of trainers/alumni is included, ensuring you feel confident and supported as you integrate your new skills into clinical or educational practice.
ADHD Prescriber and Management
This is a virtual 1-day virtual course run by Lynda supported by Sarah with ADHD Powerbank tools. This course is created for clinicians and prescribers involved in the ongoing care of individuals with ADHD.
The course covers the pharmacological management of ADHD, including titration, monitoring, and side-effect management, as well as psychoeducation and lifestyle-based interventions. Trainees will also explore collaborative care models, medication reviews, and shared-care protocols in line with NICE guidance.
Format of the Day
Each day begins at 9am and finishes at 5pm, with breaks in between. Sarah and Lynda encourage active participation, with plenty of time for case discussion and Q&A.
The training is fully neuroaffirmative, and we welcome neurodivergent professionals by adapting engagement formats and materials to suit different learning needs.
After Training
By the end of this course, you will be a fully trained ADHD assessor, equipped to deliver high-quality ADHD assessments in line with NICE and UK best-practice standards. You will receive a certificate of completion.
Ongoing post-training supervision and access to our online community of trainers/alumni is included, ensuring you feel confident and supported as you integrate your new skills into clinical or educational practice.
Who is eligible to attend Autism and ADHD Assessor Training
Our training is typically available to professionals who have a background in healthcare, psychology, psychiatry, speech-language pathology, occupational therapy, education, or related fields—essentially anyone qualified to assess or work with individuals with developmental disorders.
Regarding our training a language proficiency document is not a requirement- however we do expect a good understanding of both written and spoken English.
Occupational therapists
Psychiatrists
Paediatricians
Psychologists (clinical, school, neuropsychologists)
Social workers or counsellors with relevant experience
Educational diagnosticians or special educators with diagnostic roles
Speech-language pathologists
Graduate students or trainees under supervision
Allied Healthcare Professionals (Nurses and Pharmacists)
Clinical Training FAQ's
Is this certified training?
Yes! You will be certified through Autism Services Group after successful completion of the training.
Is this training validated and recognised internationally?
Yes! Our training programmes are internationally recognised by our fully qualified team.
Will this training add to my CPD's?
Yes! We give CDP count for ADOS-2, ADI-R, combined and post training peer group.
How much does our courses cost?
- ADOS-2: £550
- ADI-R: £395
- Combined: £895 (£50 discount)
- ADHD Diagnosis and Assessment Training: £700
- ADHD Medication and Management Training: £700
- Post training peer-support: £30 p/m (Coming soon)
- Coding consistency workshop: (Coming soon)
Who are the trainers?
Sarah Phelan, Neurodivergent Consultant and Founder of Autism Services Group is the trainer of all 3 courses.
How does this training compare with other trainings in the market? What is ASG doing in this training which no one else has done?
1.) Autism Services Group typically offers these trainings sessions at a lower price than most other providers.
2.) Unlike most trainings, the ADOS-2 training is a 3 day course instead of 2 days.
3.) Autism Services Group is offering post-training peer support and refresher workshops as well. These workshops are open to all, rather than limiting it for ASG certified only.
4.) The team of Autism Services Group are responsive and aim to ensure quality practices when it comes to the use of these tools. To ensure this, the team is prompt when responding to the queries from people.
When is the training?
The training schedule is on the website. If the dates presented don't suit, please send us an email and will let you know when our next training courses will be put on.
Will we be certified as 'trainer' after this course?
The answer is no. You will be a certified practitioner after completing these training, you are not authorised to offer certification to others as there are additional requirements to be completed. Get in touch to find out more.
What is the duration of this training?
- The daily schedule of each course is from 9am – 5pm (UK/GMT+1 timezone)
- ADOS: 3 days
- ADI-R: 2 days
- ADOS-2/ ADI-R Combined: 5 days
- ADHD Diagnosis and Assessment Training: 1 day
- ADHD Medication and Management Training: 1 day
- Peer-support sessions: TBC
- Coding consistency workshop: TBC
Is it online or face-to-face?
We offer both online and in-person training sessions. We will specify which options are available for each date.
Who is the ADOS-2 training suited towards?
Training in the ADOS-2 (Autism Diagnostic Observation Schedule, Second Edition) is typically available to professionals who have a background in psychology, psychiatry, speech-language pathology, occupational therapy, education, or related fields, essentially anyone qualified to assess or work with individuals with developmental disorders.
Here’s a quick breakdown of who can train:
Eligible Professionals:
- Psychologists (clinical, school, neuropsychologists)
- Psychiatrists
- Speech-language pathologists
- Occupational therapists
- Paediatricians
- Social workers or counsellors with relevant experience
- Educational diagnosticians or special educators with diagnostic roles
- Graduate students or trainees under supervision
Official guidance from the University of San Francisco (who created the ADOS-2 course) says that you do not need a specific qualification to attend training, but you do need relevant clinical experience, along with a solid understanding of autism and child development. The qualifications outlined above are best placed to conduct the assessments.
You also need to be able to have the competence to work at a graduate level given the complexity of the assessment.
Professionals who wish to understand how the ADOS-2 works to be able to support families through the process, or to provide support into schools are able to attend trainings. To actually administer and interpret the ADOS-2 in practice, most institutions require formal clinical qualifications alongside ADOS-2 certification along with relevant professional insurance and, potentially, supervision.
It may be a requirement to evidence IELTS for a degree program or HCPC registration in the UK.
We expect a good understanding of both written and spoken English from attendees of our courses.
Who are the ADHD Assessor & Prescriber Training Courses suited towards?
Our ADHD training courses are designed for professionals who wish to build or enhance their expertise in the assessment, diagnosis, and management of ADHD across the lifespan. Whether you’re seeking to conduct structured assessments or deliver ongoing clinical care, these courses provide the knowledge and tools to support evidence-based, neuroaffirmative practice.
Here’s a breakdown of who can train:
Eligible Professionals:
- Psychologists (clinical, counselling, educational, or neuropsychologists)
- Psychiatrists and trainee psychiatrists
- GPs and medical doctors involved in neurodevelopmental or mental health care
- Nurses and nurse prescribers
- Occupational therapists
- Speech and language therapists
- Social workers or counsellors with relevant experience
- Educational specialists or teachers supporting children with additional needs
- Graduate students or trainees under professional supervision
Our training is open to all healthcare and allied professionals. We do not verify practitioner credentials; each participant is responsible for maintaining their own professional registration, supervision, and indemnity where applicable.
We expect a good understanding of both written and spoken English from attendees of our courses.
Our students love us
"Incredibly informative "
I completed the ADOS training with Sarah and Jo last week. It was the best training I have ever been on. The level of understanding and knowledge they both have was incredible. I would highly recommend any practitioner who is thinking of training in this area to do the training with Sarah and Jo. Thank you both so much.
"Expert facilitator and well managed"
I attended a training with Sarah, the CEO of ASG. it was such an incredibly fulfilling experience and I would highly recommend her for any training on the topic of autism, ND and related topic. The training was really well managed, organised and delivered.
"Lived experience and knowledge"
Sarah delivered first class training. She is down to earth, patient and kind in her approach. Sarah is a highly experienced and knowledgeable professional in her field of work and I learned so much from her on the course. She also offered opportunities for attendees to make their contributions, which reinforced our learning, enabled us to share our own experiences and learn from each other...
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