Assessment Team

Our Assessment Team provides psychological and psychoeducational assessment services to young people between the ages of 5 and 19 years and their families. This team also assesses university students who are looking to update older reports.

About UsElise Ditner, M.Sc., Psychometrist

Elise Ditner has over 20 years of experience providing psychoeducational assessments and support to elementary and secondary students who are experiencing difficulties with issues like ADHD, learning disabilities, anxiety, emotional self-regulation, and difficulties with planning, organization and time management.

Using a combination of assessment and consultative skills, Elise looks beyond the diagnosis to help families and schools really understand an individual’s challenges, and works with them to develop strategies to enhance learning and performance at school and in ‘real life.’

Elise has also worked in a number of hospital and treatment settings, and consulted to a variety of independent schools and public agencies. She provides workshops and presentations for parents, educators and other professional groups on topics such as attachment, motivation, working memory and understanding learning disabilities.

Elise is also a licensed Cogmed coach and has been instrumental in making that program available to individuals and to schools. She is currently working to become registered with the College of Psychologists of Ontario and is also a member of our Assessment Follow-Up Team.

When not working, Elise enjoys spending time with her family, reading and riding her horse.

About UsDr. Kristina Wilder, Ph.D., C.Psych.

A member of both our Assessment and Treatment teams, Dr. Kristina Wilder works with clients of all ages and backgrounds, including children, adolescents, adults, couples, and families. She brings enthusiasm, an energetic personality and a sense of fun to her work. Kristina believes in working transparently with clients, collaborating to meet their goals. She works with a variety of issues, including anxiety, trauma and abuse, depression, and relationship challenges.

Kristina received her Ph.D. in Psychology from St. John’s University in New York, an experience that helped her to be mindful of diverse client backgrounds. She is skillful in Dialectical Behavior Therapy (DBT), Rational Emotive Behavior Therapy (REBT), and Cognitive Behavior Therapy (CBT). She is also experienced in Psychodynamic therapy. With a wide range of tools, Kristina customizes her approach to client needs, helping each person reach their unique aims. She is a member of the Ontario Psychological Association and enjoys camping, Lego and quilting.

About UsDr. Jo-Ann Reitzel

Jo-Ann Reitzel, Ph.D., is a clinical and school psychologist who has enjoyed working with children and youth, and their families for more than 35 years. She has extensive experience in individual assessments and consultations with families, schools and physicians about children’s strengths and needs, and to make recommendations to improve success and wellbeing. She has a special interest in working with people who have developmental disabilities and has published book chapters and papers on behavioural and mental health problems in children with Autism Spectrum Disorders. Jo-Ann received her Ph.D. in Child Clinical and School Psychology from the University of Toronto in 2000. She is registered with the College of Psychologists of Ontario and is a member of the Ontario Psychological Association and the Offord Centre for Child Studies at McMaster University. She is an Assistant Professor in the Department of Psychiatry and Behavioural Neurosciences in the Faculty of Health Sciences at McMaster University, where she is involved in teaching, supervision of psychology residents and research in autism with the McMaster Autism Research Team. Jo-Ann uses a flexible and goal-directed approach to treatment, believing that every child and family deserve effective interventions that fit their specific needs.