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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 AFBPsS FRSA is a Specialist Consultant Educational Psychologist in Independent Practice. Based in the Howardian Hills, near Malton in North Yorkshire, Dr Dyer travels to a youngster’s home and school to conduct assessments. This is up to a maximum of 2 hours’ travel from York.

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.

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.


‘Thank you Hilary for your very timely report. Yet again, the quality of your assessment and report never cease to amaze me.’

January 2019

‘Thank you so much for delivering another fantastic session.  I had really positive feedback from A and P when I was dropping them off. So lucky to have you on Team Oscar and Team H.’

January 24th 2019

‘What a pleasure to meet you Hilary – you were fabulous, bright and full of zest – an inspiration and my team went away feeling very supported and encouraged.’

January 24th 2019