Bespoke psychological
assessments and interventions
for children & adults
Compassionate and expert assessment, therapy, and support for families, adults, and schools – helping you thrive with care and confidence.
Our Process
1
Complete our Online Developmental Screen
2
Tailoring Your
Assessment Plan
3
Delivering
Your Assessment
4
Personalised
Intervention Plan
Our Assessments
ADHD Assessment
ASD Assessment
Intelligence Testing
Educational Assessment
Dynamic Assessment
Interventions & Consultations
Emotional Regulation & Social Thinking
Consultation to parents
Consultation to Schools
Cognitive Abilities Profile
About Us
Thank you for taking the first step towards your own or your child’s wellbeing.
At CAL, we understand that starting an assessment for yourself or your child can feel overwhelming. Our expert multidisciplinary team – comprising clinical and educational psychologists, psychiatrists, occupational therapists, and speech and language therapists – works closely with children, adolescents, families, and schools to provide comprehensive neurodevelopmental and educational assessments.
We specialise in diagnosing and supporting ADHD, Autism, behavioral and emotional challenges, and learning difficulties. Our personalised approach includes a range of tailored interventions for families, and parent & teacher consultations. For adults exploring a late diagnosis of Autism or ADHD, we offer assessments and support to help them better understand their needs. All our assessments are evidence-based, NICE-approved, and regulated by the HCPC, ensuring high-quality, reliable care. With CAL, you receive expert, coordinated support—all in one place.
We look forward to supporting you on your journey.
Dr Yehuda Marshall
Client Testimonials
Deborah Taylor
We recently had the opportunity to engage with Clinical Assessments Ltd. From the outset, Yehuda created a welcoming and accepting environment and the support provided was helpful and engaging. The team were passionate about neurodiversity and approached staff training with empathy, respect, and a deep understanding of the unique challenges faced by neurodivergent pupils.
GBF
Dr Marshall and his team were incredibly professional and caring when assessing my son. They took the time to listen to my concerns, and really explain what would happen at each stage of the assessment. At the end, they also helped me to understand what his diagnosis meant, and I felt supported and empowered to know how to help him. Thanks!
AE
CAL was amazing! We've done so many assessments over the years, but only CAL looked at everything together, spoke to the other therapists and school, and figured out what was at the bottom of our son’s difficulties. They worked with the other therapists to make a joined together plan and he has been doing brilliantly!
Jackie B
The insights provided about our daughter’s processing were truly eye-opening for us! We have already started applying the recommendations at home and are hopeful that the school will implement them as well.
A recent moment really highlighted the impact of this understanding—while packing away board games during renovations, Chloe struggled to fit them into boxes. Thanks to your report, we recognized this as a challenge in problem-solving. Instead of frustration, we turned it into a fun brainstorming game. By the end, she felt so empowered!
We are incredibly grateful for this knowledge and support. Thank you so much!"
Brian L
The combination of the ADHD medication and the Zones programme is helping our son and the whole family, enormously. His episodes of dysregulation are much, much less frequent, but even when they do happen, we’ve noticed a marked improvement in his ability to move very quickly out of red zone and to acknowledge what he happened and rationalise it. It’s life changing for all of us really. Thanks again to you, Yehuda and all of the team at CAL for the fantastic work you’re doing with our son.
Rachel C
My daughter was really struggling and we went from one medical discipline to another looking for answers, spending lots of money and getting mixed messages. I went to CAL and it was life changing. we got specific and pointed advice in the right direction. I cannot recommend this enough.
David M
Clinical assessments, through their professionalism and dedication to helping each child reach their goals, didn’t just transform the life of our child but also enhanced the social well-being of the entire family. The confidence they instill through their professional and committed staff, along with the care shown, has transformed our daughter's life for the better, helping her achieve so much more.
JC
From the outset, Dr. Marshall has been extremely helpful, considerate and honest in his approach with our daughter. For parents like us who are trying to navigate a situation which is new to them, it has been wonderful to know that Dr Marshall is at the end of a telephone call or email if we ever need additional guidance. I am delighted to say that as a result of Dr Marshall's expertise, our daughter is now well on the way to feeling able to reach her true potential.
FR
My daughter was really struggling and we went from one medical discipline to another looking for answers, spending lots of money and getting mixed messages. I went to CAL and it was life changing. we got specific and pointed advice in the right direction. I cannot recommend this enough
L Jackson
The service at CAL has been outstandingly professional. Dr. Marshall and his team have worked closely with my son, focusing on improving his social communication skills. The progress has been truly life-changing—my son now has friends and is much happier as a result.
The team also conducted a thorough assessment for ADHD, leading to an accurate diagnosis and appropriate medication. Since then, my son’s performance at school has improved significantly.
I highly recommend Dr. Marshall and his exceptional, dedicated team for their compassionate and professional care. We are incredibly grateful for the positive impact they’ve had on our son’s life



