About Us

Who is ATBX?

Our History

While working with underserved populations of children and youth, many of whom were involved in the child welfare and justice systems, we saw first hand the desperate need to increase accessibility to effective, high quality, science informed interventions. Many of the children we worked with had experienced significant traumatic experiences or were involved in broken systems that reinforced maladaptive behaviors that were likely to open them up to being placed in restrictive environments and/or experience subsequent trauma.

In an effort to expand access to services and promote meaningful systemic change for broken systems Adapt & Transform Behavior (ATBx) was created. Since our beginning, in 2017, we have stayed true to our mission. Our holistic approach to behavior analysis services results in measurable changes to not only to our clients behavior but their physical, emotional and intellectual well beings by capitalizing on their strengths and integrating opportunities for learning.

Our Team

Samantha Fuesy
MA, BCBA

Samantha Fuesy is a Board Certified Behavior Analyst (BCBA) and received her Master’s Degree in Applied Behavior Analysis from the University of South Florida. in 2014.

Early in her career Samantha began working with child welfare and justice involved children & youth. Her experiences working in this space created passion for promoting systemic changes and expanding access to effective treatment and supports to underserved populations. These passions are what led her to opening Adapt & Transform Behavior, LLC (ATBx) in 2017. At ATBx Samantha has worked to build a team of passionate, expert behavior scientists who share her dedication to making meaningful change.

In addition to her work with system involved children and youth, Samantha specializes in the treatment of severe behaviors, program wide consultations and systems interventions, staff trainings and coaching, individualized services for children and adults diagnosed with ASD, developmental disabilities, and behavioral disorders (ADHD, conduct disorder, ODD, etc.), parent/caregiver trainings.

Emily Kieffer
MA, BCBA

Emily Kieffer is originally from Southern Illinois. She received her Bachlors in Psychology from Southern Illinois University at Carbondale. Then she attended Middle Tennessee State University where she obtained a Masters in Clinical Psychology with a specialization in Applied Behavior Analysis. During her graduate studies, she interned with the Department of Corrections in Tennessee working with work release to death row male and female populations.

Since moving to Florida and becoming a BCBA (in 2014), she has provided ABA services to a wide variety of age groups, populations and disabilities. While working with the DOC populations in Tennessee, Emily often saw that they had a history of incarceration since childhood. Therefore, she sought to work with juvenile offenders and those with severe problem behaviors to aid in their success with prosocial behaviors. She also strives to supervise and grow analysts to support all populations.

Nicole Harris, MS, BCBA

Clinical Director – Holistic Learning Center & Implementation Oversight

Nicole Harris serves as the Clinical Director – Holistic Learning Center & Implementation Oversight at Adapt & Transform Behavior. She earned her Master of Science in Applied Behavior Analysis from the University of South Florida and has worked in the field since 2016 across clinical, school, residential, and group home settings. Nicole joined ATBx in 2020 and was promoted to Chief Analyst in 2022 in recognition of her ability to drive meaningful outcomes, lead multidisciplinary teams, and coach staff with clarity and purpose.

Nicole specializes in designing and implementing individualized, science-informed interventions for children and youth with diverse needs. Her expertise includes precision teaching, fluency-based instruction, differentiated learning strategies, systems-level consultation, and staff development. She now leads implementation oversight across ATBx’s Holistic Learning Center and community-based programs, ensuring high-quality, outcomes-driven care across environments.

Paula Petit-Frere, MA, BCBA

Director of Clinical Training & Development

Paula is the Director of Clinical Training & Development at Adapt & Transform Behavior. She earned her Bachelor’s degrees in Psychology and Criminology, followed by a Master’s in Applied Behavior Analysis from the University of South Florida. Since 2012, Paula has worked across diverse settings—including early intervention centers, residential programs, schools, group homes, family homes, and independent living—bringing deep experience to every level of care.

Since joining ATBx in 2022, Paula has focused on advancing clinical training systems, mentoring new professionals, and ensuring high-quality service delivery across programs. She is driven by a passion for achieving meaningful outcomes through a team-based approach—equipping staff with the tools, guidance, and support needed to provide the best possible care to every client.

ABA for everyone

Ensuring effective services are accessible for all

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