Our Story

At BACA (Behavior Analysis Center for Autism), we are committed to helping children with autism grow, learn, and thrive through personalized, evidence-based therapy.  

Carl Sundberg, Ph.D., BCBA-D, founder and chief clinician, built BACA on decades of experience in applied behavior analysis, with a focus on verbal behavior and child development. 

We begin with a comprehensive evaluation to understand your child’s strengths and challenges. From there, we create a customized treatment plan to help them develop essential skills. Therapy takes place where it’s most effective — in our Learning Centers, at home, in the community, or in schools. 

Our goal is to support your child’s development by:

  •  Improving communication skills
  • Building social and play skills
  • Encouraging flexibility and independence
  • Reducing behaviors that interfere with learning 

As part of LEARN Behavioral, a trusted national leader in autism care, BACA combines local expertise with national resources to support your family. We’re here to help your child gain the skills they need for a happy, fulfilling life. 

Our Team

Stacy Apraez, MA, BCBA

Senior Regional Clinical Director

Stacy Apraez is a senior clinical director for BACA, overseeing the state of Indiana. She holds a bachelor of science in psychology from the State University of New York College at Brockport and a master’s degree in applied behavior analysis from the Florida Institute of Technology. Stacy started her career in 1994 at the May Institute working in group homes. She joined Behavior Analysts, Inc. – STARS School in California in 1996. During her tenure, she worked as a consultant in home-based, public, and private school applied behavior analysis (ABA)/verbal behavior (VB) programs under the direction of Mark Sundberg, Ph.D., BCBA-D, MaryAnn Powers Ph.D., BCBA-D, and James Partington Ph.D., BCBA-D. . Stacy later became the Training Division Manager, where she and her team presented a series of workshops throughout the US and Canada, geared for a range of audiences from parents to seasoned professionals. After relocating to Indianapolis in 2005, Stacy continued with Behavior Analysis, Inc. – STARS School as an instructor delivering web-based courses in ABA and VB. In 2006, Stacy began working at the Verbal Behavior Center for Autism to gain additional professional experience under the guidance of Carl Sundberg, Ph.D., BCBA-D. When Dr. Carl Sundberg and Devon Sundberg MA, BCBA founded the Behavior Analysis Center for Autism (BACA), Stacy joined as one of their original consultants. She became the first clinical director at BACA, eventually taking on the role of Director of Operations, which included oversight of all four BACA Locations. Stacy has presented at multiple conferences throughout her career, including Cal-ABA and WIBA. She joined the LEARN Behavioral team in 2021 as a Senior Clinical Director for BACA.

“My greatest satisfaction is seeing BACA employees, who initially joined “just to get a job,” grow to love behavior analysis and the clients we serve and eventually mentor others just entering the field.”

Ann Dorlet, MA, BCBA

Center Director

Ann is the Center Director at BACA Prep in Fishers, Indiana. She received her master’s degree in applied behavior analysis from The Chicago School of Professional Psychology in Los Angeles, CA, and has worked in applied behavior analysis (ABA) for over 18 years. Before moving to Indiana, Ann worked at the Center for Autism and Related Disorders (CARD), providing behavior therapy and consultation services in the home and school environments. In 2011, she joined BACA as a Team Supervisor, providing direct consultation, developing programs for her clients, and training therapists to implement ABA and VB protocols. In 2013, Ann became the BACA Atlas Clinic Director, providing behavior consultation and assisting families and individuals who live in areas with limited or no behavior analytic services. In December 2015, Ann transitioned to her current role at BACA Prep. Ann looks forward to continuing the dissemination of behavior analysis in the great state of Indiana.

“I knew I wanted to work in ABA when my nephew was diagnosed with autism. He has inspired me to help individuals and families find happiness in their everyday lives.”

Ashlee Eckerle, MA, BCBA

Center Director

Ashlee joined BACA in 2013. Since then, she has held a variety of roles — including advanced technician, lead technician, behavior analyst, and clinical assistant.


Ashlee has a bachelor’s degree in exercise science from Purdue University. She also has dual master’s degrees in sports administration and applied behavior analysis (ABA) from Ball State University specializing in ABA and autism. In 2016, she became a board certified behavior analyst (BCBA).


In addition to her work accomplishments, Ashlee values the time she spends with her husband and three sons in Fishers, Indiana. Fun fact: Their names all begin with the letter “A.”

“I feel great satisfaction seeing our clients and staff have ‘ah-ha’ moments when they reach milestones.”

Beth Roudebush, MA, BCBA 

Center Director

As the center director at the Behavior Analysis Center for Autism (BACA) in Zionsville, Beth offers expertise that stands out among the competition. She began her career in autism therapy in 2008, working under the guidance of Dr. Carl Sundberg, a prominent figure in the field. Beth received ongoing mentorship from more leaders in applied behavior analysis (ABA) therapy, focusing heavily on language development and reducing behaviors that interfere with growth and learning.


Before pursuing a career in ABA, Beth worked in sales and management, which added a unique blend of business acumen and clinical leadership to her role. Initially drawn to her first job to “hang out with kids all day,” she says she quickly recognized the power of autism therapy to make a real difference in families’ lives.


Beth earned her undergraduate degree in applied health science from Indiana University and her master’s in behavior analysis at the Florida Institute of Technology.

“One thing I love about applied behavior analysis (ABA) is how dynamic it can be. I truly think ABA can change the world and improve the lives of everyone.”

Christina Wyse, MS, BCBA

Center Director

Christina Wyse is the Center Director for both BACA Hart in Elkhart, IN and BACA in South Bend, IN. She has been working with children on the autism spectrum since 2006 when a college friend invited her to shadow an in-home session “using this thing called ABA.” She has served clients in Ohio, Pennsylvania, Minnesota, and Indiana in both home and center-based settings. She received her bachelor’s degree in psychology from Baldwin-Wallace College, coursework in speech and language pathology from Kent State University and University of Pittsburgh, and her master’s degree in applied behavior analysis from St. Cloud State University under the supervision of Dr. John T. Rapp. Christina has been a board certified behavior analyst since 2012. Her master’s thesis entitled, “Training Staff to Implement Brief Stimulus Preference Assessments” was published in the Journal of Applied Behavior Analysis in 2014. Christina is a member of the Association for Behavior Analysis International (ABAI) and the Hoosier Association for Behavior Analysis (HABA) and has presented at ABAI, Minnesota Northland Association for Behavior Analysis (MNABA), and HABA. She has worked at BACA since 2013. 

“I’m proud to work for a company whose team works together every day to help each child live his or her best life. Another highlight of this job is teaching our staff about ABA and watching them become excited and passionate about client progress.”

Melany Shampo, MA, BCBA

Center Director

Melany has worked in the field of ABA since 2003. She received her undergraduate degree in speech language pathology from Butler University and a master’s degree in special education with concentration in applied behavior analysis (ABA) from Ball State University in 2010. She has worked at BACA since its inception in 2009 and has served as the Assistant Clinical Director at the BACA 1 location since 2013. Melany worked as a special education instructional aid in a public school setting and as a behavior technician with other ABA service providers. Melany became motivated to enter the field of ABA following her training as a behavior technician when she experienced first-hand how quality and compassionate ABA service positively impacts quality of life.

“Seeing the smiles and experiencing the successes of our kids, our families, and our staff when they achieve goals and reach milestones, gives me the greatest sense of satisfaction.”