The Middle Group: the Children the System Will Not Move For
One in five pupils in England now has an identified special educational need (DfE, 2026). But the group that keeps SENCOs awake is mostly not on that register. It sits underneath it and between its tiers: the middle group, and every SENCO knows these children by name.
Three overlapping sets
The middle group is defined by two facts, not by a diagnosis: a real difficulty with attention or executive function, the mental machinery of focusing, holding things in mind, planning and finishing, and a system that either will not move for the child or will not move quickly enough.
It is three overlapping sets of children. The never-identified, whose difficulties have simply not been noticed. The parked, recognised at SEN support, where the school must help but where the need itself has often never been measured. And the waiting, already in the referral queue, for whom the system will move, just not soon: adolescents wait an average of eighteen months for assessment (NHS England, 2025), and beyond two years in deprived and multilingual communities (Children's Commissioner, 2024).
Why the gate misses them
The referral route begins with adult suspicion, and suspicion is biased. In one study across ten countries, girls made up just 16 per cent of ADHD referrals despite similar levels of impairment (Novik et al., 2006), largely because girls with attention difficulties tend to daydream rather than disrupt. And 42 per cent of teachers report not knowing how to address ADHD-type needs in the classroom (ADHD Foundation, 2022). A gate that opens only for the children an adult happened to notice was never going to be fair.
ADHD itself affects around 5 per cent of UK children, and research suggests a further one in six show milder difficulties with comparable effects on day-to-day functioning. Most are never measured by anyone.
What changes when every child is measured
The answer to a biased gate is not a better gate. It is measuring everyone. When a whole cohort completes the same objective assessment, the quiet daydreamer and the disruptive boy get the same look, the children nobody referred get flagged, and the children in the queue stop waiting empty-handed: by the time their appointment arrives, there is a term of objective data to hand over.
That is the thinking behind the Pebble Skills Check. One lesson, every student, and a profile for each: strengths first, difficulties explained, strategies attached. Not a diagnosis, and never a label. A way of seeing the children the system has been walking past.