Sarah Simister

Clinical Experience

As a Senior Assistant Psychologist with a BSc (Hons) in Psychology and an MSc in Applied Psychology, I have extensive experience in diagnostic assessment, as part of a multi-disciplinary team and under supervision, with autistic individuals—including those with a Pathological Demand Avoidance (PDA) profile—as well as with individuals with Attention Deficit Hyperactivity Disorder (ADHD) and trauma- and attachment-related difficulties.

Trained to deliver and interpret the Autism Diagnostic Interview–Revised (ADI-R) and the ADHD Child Interview (ACE), I am also qualified to administer and interpret a range of cognitive and psychometric assessments. My approach is thoughtful and person-centred, with a strong focus on understanding each individual’s strengths, needs, difficulties, differences, and lived experiences. I am committed to listening to and learning from each person’s perspective, valuing their experiences without judgment. Recognising how personal history, neurodivergence, and environmental factors shape development, coping strategies, and ways of navigating social and emotional challenges, I strive to create a supportive space where every voice is heard and respected.

I am currently completing a PhD at the University of Birmingham, titled “Reframing ADHD-HI in Women: Lifespan Perspectives on Peer Rejection, Self-Acceptance, and Authenticity,” reflecting my passion for advancing understanding of neurodiversity across the lifespan.

In my role as Clinical Operations Lead, I draw on extensive experience within the practice to ensure high-quality, ethical, and compassionate service delivery.