PhD in Psychology
Doctoral study providing an advanced foundation in psychological theory, research and the understanding of mental health.
Institute Director · Psychotherapist · Educator
Dr John Crimmins
Consultant Psychotherapist and Founder of The Behaviour Institute
An Irish psychologist, psychotherapist, author and educator with more than 25 years of clinical experience across cognitive behavioural, psychodynamic, addiction and trauma-informed work.
25+ years
Clinical practice, teaching and professional leadership
PhD
Psychology
CBT
Specialist clinical training
Global
Online and live professional education
CPD
Accredited course provider
An integrative clinical perspective
Experience shaped by people, not one model
Dr John Crimmins has worked with people experiencing depression, anxiety, addiction, eating disorders, trauma and complex life difficulties. His clinical perspective combines the structure of Cognitive Behavioural Therapy with person-centred skills and a psychodynamic understanding of the individual.
His approach places the therapeutic relationship at the heart of effective psychological work. Techniques and structured interventions are valuable, but they are most effective when grounded in empathy, trust, careful assessment and an understanding of the person behind the presenting difficulty.
This same philosophy informs his teaching: clear theory, realistic case material, live demonstration and active development of the interpersonal skills required to use psychological models responsibly.
Education and specialist training
A multidisciplinary foundation
Formal study across psychology, counselling, psychotherapy, group relations, CBT and eating disorders supports an integrative understanding of human behaviour and change.
Postgraduate Diploma in Group & organisational psychodynamics
Study at the University of the West of England, informed by psychoanalytic theory, organisational dynamics and the work of Wilfred Bion.
Higher Diploma in Counselling
Professional counselling and psychotherapy studies at Trinity College Dublin, with a strong grounding in the helping relationship.
CBT and Eating Disorders
Specialist training at the Maudsley Hospital in London, focused on Cognitive Behavioural Therapy and the treatment of eating disorders.
Clinical and professional experience
More than 25 years across complex settings
Addiction services
Former senior manager at Merchants Quay Ireland, working across harm reduction, needle exchange, methadone treatment and residential addiction services while managing and supervising a multidisciplinary team.
Kildare Street Clinic
Co-founder of a specialist eating-disorder clinic with psychiatrist Dr Anne Leader, developed around comprehensive assessment and collaborative care.
Trauma and organisational support
Provided trauma-informed support following violent robberies, sudden workplace deaths, armed threats and difficult NGO deployments in conflict-affected regions.
Founder and educator
The Behaviour Institute
Dr Crimmins founded The Behaviour Institute to make high-quality psychological education accessible to learners and professionals internationally.
Online diploma programmes studied by a diverse international
community
Live, experiential CBT skills programmes for professionals and
postgraduate learners
Courses certified through the CPD Certification Service in London
Teaching grounded in clinical experience, case material and the
therapeutic relationship
Professional connections
Memberships and advisory work
American Psychological Association
Professional membership
International Critical Incident Stress Foundation
Professional membership
International Society of Substance Use Professionals
Professional membership
The Institute’s educational purpose
Psychology education that connects theory with human experience
The Behaviour Institute welcomes learners from different professional, academic and personal backgrounds. Its programmes support knowledge, continuing professional development and progression to further study.
Important: Online diploma courses provide
structured education and professional development. They do not, by
themselves, qualify someone to practise as a professional therapist.
Continue your learning with The Behaviour Institute
Explore self-paced online diplomas or learn about upcoming live CBT skills programmes.
