Assessment, Formulation and Diagnosis from 8-80

Assessment, Formulation and Diagnosis from 8-80

Request for Assessment

The team here at the autism shed know from lived experience that coming for diagnosis can be a confusing, disorienting and upsetting time. The process can also be uplifting, freeing and empowering. We are here with the experience, expertise and empathy to make the process as positive as possible.

The British Psychological Society Guidelines (2021) advise that assessment, formulation and diagnosis are carried out using gold standard measures by a multi-disciplinary team.


The team at ‘the shed’ take a humanistic, relational approach to the formulation and diagnosis of autism. Holding the tension of this apparent contradiction, labelling while seeing a person as fully as possible, is part of the work and education that we do at the shed. Our work with autistic people includes assessment, psychotherapy, coaching and advocacy in schools and the workplace.

Early Development



Early development

In order to assess for autism it is important to gather information about your early developmental history to help inform the assessment process and to assess what other professionals may need to be included in the process.


The ADI-R is a clinical diagnostic instrument for assessing autism in children and adults.

The ADI-R is a revised version of the original ADI and the information obtained can be used in a diagnostic assessment process to inform the formulation guided by the DSMV (diagnostic manual).

The questionnaire is usually carried out with parents or carers. Other respondents who know you well can get involved. The questions focus on gathering information about:

qualities of reciprocal social interaction;

communication and language;

and restricted and repetitive, stereotyped interests, sensory profile and behaviours.


The Autism Diagnostic Observation Schedule-Second Edition ADOSII is a semi-structured observational assessment, which contains a sequence of task and social activities administered by trained clinicians.  The ADOS-2 evaluates a person’s communication skills, social interaction, and imaginative use of materials in individuals who are suspected to have autism spectrum disorder (ASD). 

The assessment looks at five core areas of skill:

  • Language and communication
  • Reciprocal interaction
  • Imagination
  • Stereotyped behaviours and interests
  • Other behaviours

After Assessment

Bespoke School Liaison Packages

Bespoke School Liaison Packages

Here at the autism shed we do not believe that autism is something to be treated but sadly when it is not understood and the autistic persons context is not suitable autism can become traumatic. We have expertise in this area and we are here to help – either with 1:1 psychotherapy or training and education for your family, school or workplace.

Contact us to arrange a consultation

Arrange a Consultation

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