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Evidence base

Anchored in the people doing the work.

Every coaching domain in Incala is built on contemporary research and practitioner expertise. We'll keep this page updated as the evidence base evolves — and we welcome corrections.

Neurodiversity paradigm

We operate from the neurodiversity paradigm — neurological variation as part of human diversity, not pathology to be cured. Disability arises from the mismatch between neurotype and environment.

  • Judy Singer

    Coined the term "neurodiversity" (1998); foundational sociological framing.

  • Nick Walker

    Neuroqueer Heresies; neurodiversity terminology and paradigm work.

  • Thomas Armstrong

    Neurodiversity framework for educational practice.

  • Damian Milton

    Double empathy problem (2012) — mutual misunderstanding between NT and ND people, not a one-sided autistic deficit.

  • Dinah Murray, Wenn Lawson, Fergus Murray

    Monotropism theory — attention as narrow-and-deep channels; reframes restricted interests as expertise.

  • Devon Price

    Unmasking Autism; masking as systemic survival, not personal duplicity.

  • Anne Donnellan

    Least dangerous assumption / presume competence.

  • Russell Barkley

    ADHD as executive function impairment; interest-based nervous system framing.

  • William Dodson

    Rejection-sensitive dysphoria as a neurological feature of ADHD.

Regulation-first practice

Behaviour is communication about a body state in a context. The nervous system comes before the cognition. Co-regulation precedes self-regulation.

  • Stephen Porges

    Polyvagal theory — ventral / sympathetic / dorsal-vagal autonomic states.

  • Bruce Perry

    Neurosequential Model (NMT) — regulate, relate, reason; state-dependent functioning.

  • Mona Delahooke

    Beyond Behaviors, Brain-Body Parenting; iceberg model of behaviour.

  • Stuart Shanker

    Self-Reg; co-regulation as foundation of self-regulation.

  • Bo Hejlskov Elvén, Andrew McDonnell

    Studio III low-arousal approach; evidence base in residential and SEN school contexts.

  • Daniel Hughes

    DDP and PACE (Playfulness, Acceptance, Curiosity, Empathy) as a relational stance.

  • Karen Treisman

    Therapeutic Treasure Box; trauma-informed practice in UK schools.

  • Dan Siegel

    Window of tolerance; interpersonal neurobiology.

Behaviour as communication

Most popular school behaviour systems are built on neurotypical assumptions of volitional control. When applied to ND learners they don't just fail — they actively harm.

  • Ross Greene

    Collaborative & Proactive Solutions; "kids do well if they can" — lagging skills, not lagging motivation. RCT evidence in psychiatric inpatient settings (Greene et al., 2004); quasi-experimental school evidence for reduced disciplinary referrals (Pollastri, Epstein & Ablon, 2013).

  • Barry Prizant

    Uniquely Human; SCERTS (Social Communication, Emotional Regulation, Transactional Support).

  • Luke Beardon

    UK SEN training; "the environment is the problem."

  • PDA Society / Casey Ehrlich

    PANDA approach to Persistent Drive for Autonomy / Pathological Demand Avoidance.

  • Naomi Fisher, Eliza Fricker

    EBSA / "school can't" framing — Changing Our Minds, Can't Not Won't.

UK SEND statutory and practice framework

Anchored in UK statute and the current evidence-summary documents used across the sector.

  • SEND Code of Practice 0–25 (2015)

    Statutory framework. Graduated approach (Assess–Plan–Do–Review). Four broad areas of need.

  • Equality Act 2010

    Anticipatory, ongoing, individual reasonable adjustments duty. Most ND pupils meet the Act's definition of disability.

  • Children and Families Act 2014

    Statutory basis for EHCPs.

  • Whole School SEND (EEF / nasen)

    Self-evaluation framework, review guide, leadership and management.

  • EEF SEN in Mainstream Schools (2020)

    Authoritative UK evidence summary on what works in SEND provision in mainstream classrooms.

  • EEF Making Best Use of Teaching Assistants (2018)

    DISS / MITA evidence on TA deployment; scaffolding independence vs Velcro deployment.

  • UDL Guidelines 3.0 (CAST, 2024)

    Multiple means of engagement, representation, action and expression. Proactive design over retrofitted accommodation.

  • Timpson Review of School Exclusion (2019)

    Exclusion disproportionality data: SEN pupils excluded at 3–5x rate of non-SEN; Black Caribbean and GRT SEN doubly disadvantaged.

Leadership and system change

For school-system coaching — what holds together a coherent change programme across politics, budget, and culture.

  • Michael Fullan

    Coherence framework; four drivers of system change (focused direction, collaborative cultures, deepening learning, accountability).

  • Viviane Robinson

    Student-Centered Leadership; meta-analysis showing instructional leadership most impactful on pupil outcomes (effect size 0.84).

  • Andy Hargreaves & Michael O’Connor

    Collaborative Professionalism vs contrived collegiality.

  • Helen Sanderson

    Person-centred planning; PATH and MAPS extended to organisations.

  • Kiran Gill / The Difference

    SEMH-led leadership; Sandhill Park study on cost of punitive behaviour systems for SEND pupils.

Stance

What this is and what it isn't

Coaching, not therapy. Incala is non-clinical. We do not diagnose, treat, or replace registered psychotherapists, psychiatrists, EPs, OTs, SaLTs, paediatricians, or CAMHS clinicians.

Evidence-informed, not claim-led.The system prompt is grounded in the people and frameworks listed above. We hold contested terrain honestly — polyvagal anatomy, PDA classification, ABA debates — rather than overclaiming.

Not a safeguarding mechanism. If you or someone you know is at risk, contact your GP, NHS 111, Samaritans (116 123 UK), or 999.