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Diagnostic Criteria
At Youthful Minds, our diagnostic process follows internationally recognised frameworks and evidence-based standards. Every autism and ADHD assessment is guided by the DSM-5 and ICD-11 criteria to ensure accuracy, fairness, and consistency in diagnosis.
Key Diagnostic Frameworks
- DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) — used globally to identify autism spectrum disorder (ASD) and ADHD. It includes five main criteria (A–E) covering social communication, repetitive behaviours, early onset, functional impact, and differential diagnosis.
- ICD-11 (International Classification of Diseases, 11th Edition) — published by the World Health Organization (WHO), this framework describes autism as persistent differences in social communication and restricted, repetitive, and inflexible behaviours present from early development.
What This Means in Practice
During your assessment, we explore how social communication, sensory experiences, focus, and behaviour have developed over time. Our clinicians look for patterns consistent with these criteria, considering both current presentation and developmental history.
We combine structured observation, detailed interviews, and validated rating scales to ensure each diagnosis is comprehensive and person-centred — not based on one tool alone.
Why It Matters
Using established diagnostic criteria ensures that your final report is clear, credible, and recognised by educational institutions, healthcare providers, and employers. It also provides a strong foundation for tailored post-diagnostic support and practical recommendations.
Tools & Measures Used in Assessments
We use a combination of internationally recognised diagnostic tools and rating scales to deliver precise, evidence-based assessments for autism and ADHD. These instruments are recommended by NICE and widely accepted in both private and NHS settings across the UK.
Autism Assessment Tools
- ADOS-2 (Autism Diagnostic Observation Schedule, Second Edition) — a gold-standard observational tool used to assess communication, social interaction, and behaviour in children and adults.
- ADI-R (Autism Diagnostic Interview – Revised) — a detailed, semi-structured interview with parents or caregivers exploring developmental history, language, and social communication.
- Supplementary Measures — such as the Social Responsiveness Scale (SRS-2), Social Communication Questionnaire (SCQ), or Childhood Autism Rating Scale (CARS-2) for additional insights across home, school, or work environments.
ADHD Assessment Tools
- Conners-4 and SNAP-IV Rating Scales — standardised questionnaires measuring attention, impulsivity, hyperactivity, and emotional regulation, completed by the individual and, when relevant, parents or teachers.
- Structured Clinical Interview — explores developmental history, behavioural consistency, and functional impact across multiple settings.
- Executive Function and Cognitive Testing — optional tests that assess working memory, focus, and processing speed to better understand how ADHD affects day-to-day life.
How We Combine the Tools
Each instrument contributes to a full picture of an individual’s strengths and challenges. Observation (ADOS-2) provides real-world behaviour data, interviews (ADI-R) capture lifelong patterns, and rating scales (Conners-4, SNAP-IV) offer multiple perspectives — ensuring diagnostic reliability and clinical precision.
Why It Matters
Our multi-tool, multi-source approach guarantees:
- Consistent, reliable diagnoses accepted by education and workplace systems.
- Recommendations tailored to personal strengths and needs.
- Confidence that every assessment meets the highest clinical standards.
At Youthful Minds, our goal is to deliver clear, compassionate, and clinically sound assessments that empower you with understanding and practical next steps.
Contact us to book your private autism or ADHD assessment today.
