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Eligibility Criteria

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Eligibility Criteria for Educational Settings

Inclusion Criteria 

1. Special Education Needs and Disabilities (SEND) educational settings or mainstream educational settings with SEND units around Great Britain

2. At least 5 children/young people meeting the eligibility criteria

3. Capacity and willingness to agree to the requirements of participation outlined in a memorandum of understanding (MOU), which will ask settings to confirm that they have capacity and willingness to release staff to receive training; to deliver the intervention as intended with those children and young people participating in the trial; and to complete the outcome measures.

Exclusion criteria 

1. Setting unable to fulfil the requirements of the MOU

2. Staff have recently been formally trained in Intensive Interaction (within the past 12 months)

4. Insufficient eligible children and young people

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Eligibility Criteria for Children and Young People 

Inclusion Criteria


1. Attends an educational setting taking part in the trial

2. Has PMLD

3. Parent/guardian willing to give consent/act as a consultee for child or young person

4. Parent/guardian willing to attend Intensive Interaction training

​5. Parent/guardian willing to continue with the intervention at home

​6. Parent/guardian willing to complete outcome measures

7. Child or young person is expected to remain at the setting for the duration of the trial

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Exclusion Criteria

1. Have a degenerative condition or dementia

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