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Welcome to the website of Dr. Hilary Dyer FRSA

Independent Assessments

Independent assessments of children and young people with special educational needs (3-16) Assessments »

PDA Assessments & Diagnoses

Assessments and diagnoses of Pathological Demand Avoidance Syndrome (PDA)

PDA Assessments »

PDA Training for Schools

Pathological Demand Avoidance Syndrome (PDA) training, advice and support for schools

PDA Training »

Dr Hilary Dyer

Dr Hilary Dyer

Dr Hilary Dyer

Dr Hilary Dyer AFBPsS FRSA is a Specialist Consultant Educational Psychologist in Independent Practice. Based near Lichfield in Staffordshire, Dr Dyer travels to a youngster’s home and school to conduct assessments.

Dr Dyer is an acknowledged specialist in Pathological Demand Avoidance Syndrome. She assesses and diagnoses children and young people from 4 to 16 years who may be presenting with this condition. Her PDA assessments, diagnoses and reports have been very favourably evaluated by SEND Tribunal Judges, Paediatricians, and parents alike. Read recent testimonials here

Dr Dyer is also commissioned to conduct PDA assessments and diagnoses by Clinical Commissioning Groups in the NHS and by Local Authorities who require her acknowledged expertise in Pathological Demand Avoidance Syndrome.

Please note that Dr Dyer does not diagnose Autism Spectrum Disorders. Dr Dyer does not assess adults over 16.

Over 80% of her work is related to appeals by parents to the SEND Tribunal. She is an Expert Witness, trained by the Royal Society of Medicine, and provides medico-legal reports for Appeals and Hearings. Her reports have been favourably commended by the SEND Tribunal Judiciary. Read recent testimonials here.

Dr Hilary Dyer

Registered with the Health and Care Professions Council

Dr. Dyer has over 35 years’ experience in the field of Special Educational Needs; the last 15 as an Independent Educational Psychologist. Prior to this she was a University Lecturer in SEN for 10 years, and spent 10 years as a teacher in Special Education.

Hilary’s qualifications include a Professional Doctorate in Developmental and Educational Psychology (2001), a Masters in SEN, and a PCGE with Distinction.

Dr. Dyer is registered with the Health and Care Professions Council (HCPC) as an Educational Psychologist. She is also an Associate Fellow of the British Psychological Society.

Dr. Dyer’s work is underpinned and informed by high quality evidence based research. She is currently writing a book following her research with parents of children with Pathological Demand Avoidance Syndrome. Follow the progress of the book writing in the News section of the website.

PDFDr. Dyer’s CV contains more detailed information about her areas of knowledge, skills, expertise and experience.

Download a copy here or by clicking the PDF icon to the left.


“We saw Dr M today – he was incredibly impressed with your report.”

“Dear Hilary,

Thank you so much for this amazing report, it is fantastic. I will now write a covering letter to the LEA requesting changes to statement and school placement.

I will be in touch.”

‘The written and oral professional evidence on the parents’ side has been compelling’

‘Dr Dyer clearly has specialist knowledge of PDA, based on professional and research experience and we accept, on balance, that A is showing explicit features of PDA. This is important because it is likely that strategies to address his particular difficulties many not flow directly from conventional ASD methodology’

‘The LA has been unable to explain its refusal to accept that A’s presentation would suggest a diagnosis of PDA, or that he has a sensory processing disorder. We accept the parental evidence on both those issues’.

Judge Margaret Richards, 1st April 2015 (SE830/14/00045)