Abigail Thomas is a Clinician at Behavior Change Institute. She received her B.A. in Psychology from California State University, Fullerton. After a year break from school, she pursued and earned her Early Childhood Special Education Credential from California State University, Fullerton along with her MA in Special Education. After a few years of teaching she pursued and earned her Board Certified Behavior Analyst Certificate from University of Massachusetts, Lowell.

Abigail has worked in ABA since 2007 and with BCI since 2019. She started her experiences as a Behavior Technician and then pursued her Early Childhood Special Education Credential to teach young children with special needs. Abigail taught a non-categorical preschool classroom for three years, helping children with Autism, speech and language delays, Downs syndrome, and special medical needs. She then taught an Autism specific preschool classroom for four years working with children from ages 3-5. She has been a BCBA since 2014 and has been helping children and families in their homes since 2017. Abigail has several responsibilities with BCI including working directly with clients, parent training, and collaborating on the Parent Dissemination project.

Areas of Interest

Early Intervention
Helping parents understand IEP and school processes


B.A. in Psychology – California State University, Fullerton
M.A. in Special Education – California State University, Fullerton
BCBA – University of Massachusetts, Lowell

The BCI Mission and what it means to me

BCI means a community that is collaborative, supportive, positive, and helpful. BCI has a wonderful culture with its employees, as well as families and clients, which is amazing. Abigail contributes her own personal knowledge and experiences to BCI, as she has many years of experience in the Public School setting. She is able to help parents and staff understand the IEP process and parent/caregiver rights.