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Contact Information

Contact Name: Nudge Psychology and SWEAP
Contact Number: 08 9751 1084
Emergency Contact: 08 9751 1084


Melissa Harrison

Melissa works primarily in the assessment and treatment of mild to moderate mental health disorders. She has particular interest and expertise in the treatment of anxiety and adjustment disorders. Melissa provides psychological assessment and consulting services in relation to various medico-legal matters (court reports, Workers’ Compensation). Melissa has accrued over a decade of experience in psychology and counselling services. She has previously worked in counselling roles for child abuse and neglect, sexual assault, corrections, vocational rehabilitation, general and private practice.

In addition, Melissa has previously held the role of Consultant Psychologist to the St John of God Hospital (Bunbury) Pain Management Program, providing group Cognitive Behavioural Therapy (CBT) intervention for individuals with persisting pain difficulties. Aside from her psychological treatment experience, Melissa has a solid background in psychological assessment more broadly. She has previously been employed as an Assessment Specialist with the NSW Department of Corrective Services, and has amassed considerable experience in private practice conducting various forms of medico-legal assessment, including (but not limited to) psychological functioning, intellectual functioning, pre-liability stress assessment, parental capacity assessment, risk of recidivism, vocational assessment, fitness for work, and drug and alcohol treatment needs.


Dr Justin Harrison

Justin is Principal Couples and Family Counsellor, and a Social Science Researcher with SWEAP and Nudge Psychological Assessment and Consulting. Additionally, he is an Adjunct Lecturer in Psychology with Charles Sturt University, supervising Honours, Masters and PhD level research projects.

Justin has extensive experience in couples and family counselling for relationship and parenting problems. He also has considerable experience in the delivery of therapeutic programs addressing domestic violence, anger management and positive parenting for parents of children with a disability.

With a passion for delivering proven and evidence-based family interventions, Justin has conducted—and subsequently published—a number of program evaluation studies. Justin’s Goal Attainment Scaling instrument and manual for Early Childhood Intervention Services is only one example of this kind of work.

Prior to his current roles, Justin has worked for government departments (e.g. Child Protection) as well as NGOs (e.g. Relationships Australia), developing a sound knowledge of program management and organisational issues in medium to large organisations.


Dr Elissa Klaassen

Elissa is a Registered Psychologist. She has experience with young adults and older adults with mild to moderate mental health disorders, and is presently broadening her training to include younger children and adolescents. She has experience working with individuals and groups with various therapeutic techniques including cognitive behavioural therapy (CBT), Interpersonal Therapy (IPT), Acceptance and Commitment Therapy (ACT) and metacognitive therapy, and has worked in various contexts including generalist counselling, and drug and alcohol treatment. Elissa is particularly interested in the application of mindfulness-based approaches to a variety of issues.

Elissa has a broad educational basis (covering the areas of Neuroscience, Pharmacology and Psychology), as well as specialised knowledge and expertise in the area of Neuropsychology. Elissa completed her PhD on the subject of cognitive aging using a combined approach including neuropsychological testing and functional neuroimaging (fMRI). Other research projects she has conducted in the field of Neuropsychology made use of techniques such as EEGs and pharmacological intervention. Elissa has a strong interest in the assessment and treatment of neuropsychological disorders across the lifespan.


Romney Noonan

Romney has experience working with children, adolescents, and adults across a range of treatment settings including small clinics, adult community mental health, and the child protection system. 

In working with adults Romney draws on a range of treatment approaches including Acceptance and Commitment Therapy, Schema Therapy, and Cognitive Behaviour Therapy.  In working with children and families, he has a strong focus on attachment and child development and draws from a range of attachment based models including the Circle of Security, Dan Hughes’ PLACE model, and the ARC (attachment, regulation, competence) model.  Romney also has a specific interest in the interconnection between mind and body.  In his honours year he pursued research interests in psychophysiology, and more recently he has focused on the application of sensory-motor psychotherapy principles in his clinical practice.

Romney has a strong background in working with complex trauma and is trained in both child and adult EMDR protocols.  In 2016 Romney was invited to present at the WA Child Protection Psychology Services Conference on the topic of treating complex developmental trauma.  In addition, Romney’s Master’s thesis, completed in conjunction with CAMHS, analysed coronial data on child and adolescent suicides in Western Australia. 

181 Bussell Highway, West Busselton, Western Australia, 6280, Australia
Busselton, Bunbury, Bridgetown, Manjimup