Meet Dianna Scimeca, C.Psych.Assoc., BCBA, RBA

Registered Psychological Associate &Board Certified Behaviour Analyst
Member, College of Psychologists and Behaviour Analysts of Ontario (CPBAO)

Dianna Scimeca is a compassionate and highly skilled clinician dedicated to supporting children, adolescents, and families in achieving emotional well-being and meaningful, lasting change. She is dually registered as a Psychological Associate and Behaviour Analyst with the College of Psychologists and Behaviour Analysts of Ontario (CPBAO) and is also a Registered Behaviour Analyst (RBA).

With extensive experience in schools, community clinics, and private practice, Dianna brings a strong clinical background to her work at Hope Autism Services. Since 2013, she has been part of the Psychology Department at the Durham District School Board, where she provides psychoeducational assessments, counselling, and consultation to children and adolescents. She has also served as a Teaching Instructor in the Autism and Behavioural Science program at Seneca College, mentoring the next generation of professionals in the field.

Clinical Expertise

At Hope Autism Services, Dianna provides individualized therapy, assessment, and parent coaching using evidence-based practices. Her areas of expertise include:

• Anxiety, depression, and stress management
• Emotional regulation and anger management
• Self-esteem, resilience, and coping skills
• Parent training and family guidance
• Psychoeducational and gifted assessments
• Evaluations for neurodevelopmental disorders, including learning disabilities, ADHD, and autism

Her services help families better understand their child’s learning profile, emotional needs, and behaviour, and guide next steps for supports at home, school, and in the community.

Therapeutic Approach

Dianna’s approach is holistic and integrative, addressing both the mind and body to support overall wellness. She draws on a range of evidence-based modalities, including:

• Applied Behaviour Analysis (ABA)
• Cognitive Behavioural Therapy (CBT)
• Acceptance and Commitment Therapy (ACT)
• Mindfulness-based strategies

By combining these approaches, she develops personalized treatment plans that are tailored to each child and family’s specific goals. Her work is collaborative and strengths-focused, emphasizing empowerment, self-awareness, and practical strategies that can be used in everyday life.

How Families at Hope Benefit

Dianna’s role at Hope Autism Services allows families to access:

• High-quality psychological assessment and diagnosis
• Emotion-focused and skills-based therapy for children and adolescents
• Parent coaching to support consistency between home, school, and therapy
• A strong bridge between psychology and ABA, enhancing coordination with our clinical team

Her expertise supports clearer understanding, more targeted intervention planning, and a more integrated care experience for our clients.

Our shared commitment to high-quality, family-centred care is here to give your family confidence and peace of mind. We invite you to connect with our team, learn more about how our expertise can support your child’s development (Get Started)