Autism Assessments | explained

Autism Assessment Milton Keynes

We specialise in diagnosing autism in children and adults and only use the Autism Diagnostic Interview, revised (ADIR) and Autism Diagnostic Observation Schedule (ADOS) instruments.  These are considered the Gold standard in diagnosing autism.

Adult Autism Assessment Milton Keynes

Based in Milton Keynes, Buckinghamshire we can assess someone for autism either in their own home or at our practice.   

Due to the type of assessment delivered it is essential that the environment is suitable for both the person being assessed and the person delivering the assessment.   A home environment is by far the least stressful. 


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Autism | diagnosis and expert advice

What is autism?

Private Assessments | the school


ADIR | what does it do?

Used in research for decades, this comprehensive interview provides a thorough assessment of individuals suspected of having autism or other autism spectrum disorders. The ADI-R has proven highly useful for formal diagnosis as well as treatment and educational planning.

To administer the ADI-R, an experienced interviewer questions a parent or carer who is familiar with the developmental history and current behaviour of the individual being evaluated. The interview can be used to assess both children and adults, as long as their mental age is above 2 years, 0 months.


Evaluate 3 functional domains:

Composed of 93 items, the ADI-R focuses on three functional domains:

  • Language / Communication     
  • Reciprocal Social Interactions
  • Restricted, Repetitive and Stereotyped Behaviours and Interests

Following highly standardised procedures, the interviewer records and codes the informant's responses. Interview questions cover eight content areas:


  • The subject's background, including family, education, previous diagnoses and medications
  • Overview of the subject's behaviour
  • Early development and developmental milestones
  • Language acquisition and loss of language or other skills
  • Current functioning in regard to language and communication
  • Social development and play
  • Interests and behaviours
  • Clinically relevant behaviours, such as aggression, self-injury and possible epileptic features.



ADOS | what does it do?

The Autism Diagnostic Observation Schedule (ADOS) is the "gold standard" for assessing and diagnosing autism and pervasive developmental disorder (PDD) across ages, developmental levels, and language skills.

Allows you to accurately assess and diagnose autism and pervasive developmental disorder across ages, developmental levels, and language skills

This semi-structured assessment can be used to evaluate almost anyone suspected of having autism from toddlers to adults, from children with no speech to adults who are verbally fluent.

The ADOS consists of various activities that allow you to observe social and communication behaviors related to the diagnosis of pervasive developmental disorders. These activities provide interesting, standard contexts in which interaction can occur.


Speech and Language Therapists, do I need one?

A Speech and Language Therapist, or SALT as you may hear some people call them are specially trained individuals who assess and treat speech, language and communication problems in people of all ages to help them better communicate. They'll also work with people who have eating and swallowing problems. 

SALT's can help people who have

  • difficulty producing and using speech
  • difficulty understanding language
  • difficulty using language
  • difficulty with feeding, chewing or swallowing
  • a stammer
  • a voice problem.

Problems may have been caused by

  • stroke
  • learning disability
  • neurological disorders e.g. Parkinson's disease
  • cancer of the mouth and throat
  • head injury
  • hearing loss and deafness
  • cleft palate
  • dementia.

A SALT is not necessarily required for a diagnosis of autism.  In some cases we may advise that a SALT assessment is required but this will be discussed within the initial consultation.