Autism assessments for children and adolescents (aged 30 months+)

Thank you for considering The Cooley Practice for your Autism assessment.

You can be assured that your child’s assessment will be offered by a multidisciplinary team of professionals with expertise in autism and other neurodivergence. We will hold your family’s needs at the centre of the process.

Informed by NICE guidelines, we use evidenced-based assessment tools that are considered ‘gold standard’ within the profession, offering a valid and reliable assessment to explore and understand your child’s difficulties. Where autism is clearly evidenced, a formal diagnosis will be given and the assessment and recommendations will be documented in a comprehensive report.

The childrens' autism diagnosis service on this page is suitable for children from the aged 30 months. With our main practice based in Leicester, we also have satellite sites in Warwickshire and Norwich. If you are an adult looking for an assessment, please visit our Autism Assessment for Adults page.

We are listed in the Autism Services Directory of the National Autistic Society.

Autism assessments for children and adolescents (aged 30 months+) & Diganosis Leicester

What is Autism?

Autism is characterised by differences with social communication and interaction, impacting a person’s relationships. These social differences are combined with restricted and repetitive behaviours; this may include unusual or intense interests, sensory processing differences, a need for routine, or repetitive body movements known as complex mannerisms. These differences have a persistent and pervasive impact on the person’s functioning.

Please contact us for further details on the assessment process.

What is Autism?


The Cooley Practice offers a triage assessment to determine whether a full diagnostic assessment of ASD is warranted.

The triage assessment involves completion of questionnaires, including standardised screening tools, as well as other questionnaires to help us better understand the reason for your referral and your child’s current strengths and needs.

This information will be reviewed by one of our clinical psychologists, who will be able to advise whether formal diagnostic assessment is recommended.

Please contact us for further details on the assessment process.

What is Autism?

Formal diagnostic assessment

The assessment process is broken down into three parts, including information gathering, a multidisciplinary team meeting and feeding back the outcome.

1. Gathering information about your child

Our comprehensive assessment process will explore your child’s development and current behaviours. With all assessments for children and adolescents, the clinical team will gather information from parents and school, as well as meet with your child.

Specifically, our assessment will include:

  • clinical interview with a parent/caregiver to explore development and behaviours from birth to present day
  • an observational assessment with your child known as the ADOS-2
  • liaison with your child’s school (and an observation in the school setting where required for an additional fee)
  • questionnaires to explore possible co-existing conditions
  • a review of any relevant prior professional reports

2. Multidisciplinary team meeting

Once the assessment has been completed, the multidisciplinary team of professionals will meet to review the information gathered. They will confirm the outcome of the assessment in accordance with the diagnostic criteria for ASD, in line with the DSM-5.

3. Sharing the outcome

Once the clinical team have finalised the assessment outcome, you will be invited to a feedback appointment with the lead clinician, after which you will receive a comprehensive diagnostic report, including recommendations.

Please contact us for further details on the assessment process.

What is Autism?

Our Services

Specialist independent providers. Experienced and passionate about what we do, we are committed to working alongside you.