Our Team

Director – Susan Petrie

Susan moved to Adelaide from New Zealand in 2011 with her husband. She has been working in the field of Applied Behaviour Analysis (ABA) for over 18 years. She has worked around the world helping children with Autism Spectrum Disorder reach their potential through the most effective evidence-based interventions available. Susan is the Director of Beanstalk Child Psychology and is also a guest lecturer within the University of Adelaide’s Learning and Behaviour course. Susan is a Registered Psychologist and South Australia’s first Board Certified Behaviour Analyst.
Susan is passionate about providing the highest standard of therapy possible to her clients and was delighted to receive an award of excellence this year from the Behavioural Health Centre of Excellence. She is pleased to be the first provider in South Australia to employ and train Registered Behaviour Technicians (RBTs).

Clinical Director – Joey Lim

Joey moved from Malaysia to Adelaide in 2008 to further her studies in this area. She holds a Bachelor of Psychological Science from the University of Adelaide and Bachelor of Arts (Honours), majoring in Psychology, from Flinders University. Joey is a Board Certified Behavior Analyst. Joey specialises in early intensive behavioural intervention based on the science of ABA for children on the autism spectrum. Her work includes conducting VB-MAPP assessments, developing behaviour intervention plans, implementing individualised programs, and making decisions based on data to ensure her clients are learning new skills as fast as possible.

Program Supervisors

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Kayleigh Smith

Kayleigh joined the Beanstalk team in 2014 after 2 years’ experience in Applied Behaviour Analysis. Kayleigh has completed a Bachelor of Psychological Science at Flinders University as well as an additional year of ABA study through the Florida Institute of Technology. She is a Board Certified Behaviour Analyst and has completed her Masters of Education in Applied Behaviour Analysis. Kayleigh is passionate about increasing independence in daily activities and using a Verbal Behaviour approach to increase independent communication. Her area of specialty is in Acceptance and Commitment Therapy (ACT) for children with autism.

Koomal Kaur Ranjit Singh

Koomal joined the Beanstalk family in 2015. She has 6 years’ experience working within the field of Applied Behaviour Analysis. She studied Psychology at Flinders University, then furthered her study in Applied Behaviour Analysis at Florida Institute of Technology. She is Board Certified Behaviour Analyst and has completed her Masters of Education. She specialises in Behaviour Support and is experienced in conducting functional behaviour assessments, individualised behaviour programs as well as training parents, caregivers and educators in implementing behavioural interventions. Koomal is passionate about giving her best to make a positive transformation in the lives of children that she works with. Her favourite part of this role is being able to witness firsthand all the positive, effective and functional skills that develop as a result of Beanstalk’s interventions.

Hannah Lewis

Hannah moved to Adelaide from the UK in September 2017. She holds a Bachelor of Science degree in Psychology from the University West of England in the UK. She completed her Postgraduate diploma in Positive approaches to challenging behaviour in 2010 at Cardiff University.
Hannah became a Board Certified Assistant Behaviour Analyst (BCaBA) in 2014 and currently has over 11 years’ experience working within the field of Applied Behaviour Analysis. Hannah has worked with children of all ages, as well as some adults and is passionate about making a difference using the principles of Applied Behaviour Analysis and verbal behaviour. Her work includes designing behaviour intervention plans and conducting relevant assessments to design and implement individualised programmes that are tailored to each individual to ensure the best outcome.

Penny Schulz

Penny holds an honours degree in Psychology from The University of Adelaide. She began her training in Applied Behaviour Analysis in 2014 and joined the Beanstalk team in early 2017. She is a Board Certified Behaviour Analyst and has completed her Masters of Education in Applied Behaviour Analysis. Penny is passionate about teaching children to use functional language for requests and assisting children to develop their social skills. Penny loves making a difference in the lives of her clients and their families.

Jacqueline Abela DeGiovanni

Jacqueline moved to Adelaide from Malta with her husband and 2 children. She has been working in the field of Early Intervention and Applied Behaviour Analysis for over 20 years.

Jacqueline Abela DeGiovanni has obtained a Diploma in Individual Educational Needs (Malta), a Masters Degree in Early Childhood Education (UK) and a Post Graduate Diploma in Play Therapy (UK). She has completed her Masters of Science in Applied Behaviour Analysis (Belfast). She is also a Board Certified Behaviour Analyst. She has worked in different organisations in Malta, Holland and Ireland and has also set up the only ABA service available in Malta. Her area of speciality is early intervention and verbal behaviour.

Caitlin Ambrosia

Caitlin moved to Adelaide to work for Beanstalk in 2018. Originally from California, Caitlin began working in the field of Applied Behavior Analysis in 2008, and gained her Master’s degree in Applied Behavior Analysis from Arizona State University in 2016. She is also a Board Certified Behaviour Analyst. Caitlin’s passion has always been serving others and one of her favourite things about traveling the world is getting to observe human behaviour across so many different cultures, environments, and circumstances. As a therapist and supervisor, Caitlin strives to help families understand and work through challenging behaviours, as well as promote functional communication skills and improve speech with her clients. Caitlin is thrilled to live in Adelaide and be a part of the Beanstalk family.

Imogen Stefan-Rasmus

Imogen has been working in the behaviour support field since 2015. She holds a Bachelor of Psychological Science and a Master of Social Work. She has worked across government and non-government sectors working with children and adults.
Her work includes conducting functional behaviour assessments, developing individualised behaviour support programs and training parents, caregivers and educators in implementing behavioural interventions. Imogen is passionate about supporting children and families who have faced challenging circumstances and she has completed specialised training in Trauma Informed Behaviour Support.

Ebony Betar-Young

Ebony has been working in the field of applied behaviour analysis since 2018. She holds a Bachelor of Psychological Science and is nearing completion of her Masters of Education (in applied behaviour analysis) through Monash University. She has worked across various age groups from very early intervention right through to teenagers. Her experience has included Acceptance and Commitment Therapy, Behaviour Support, Verbal Behaviour, and Early Intensive Behavioural Intervention.

Isabelle Jeffriess

Isabelle has been working in the field of applied behaviour analysis since 2015. She holds an Honours degree in Psychological Science from the University of Adelaide, and is undertaking her Masters of Education (in applied behaviour analysis) through Monash University. She has worked across various age groups from very early intervention right through to teenagers. Her specialisation and passion is in feeding interventions. Her experience includes Feeding Programs, Behaviour Support, Verbal Behaviour, and Early Intensive Behavioural Intervention.