Milestone’s Applied Behavior Analysis (ABA) Therapy program consists of comprehensive in-home and clinic based therapy for children from birth to 10 years of age with a diagnosis of Autism. Individualized long and short-term goals are implemented by highly trained and dedicated staff including Registered Behavior Technicians (RBT) with supervision from Board Certified Behavior Analysts (BCBA).

Programs are written based on family and client needs, as well as an all-inclusive assessment conducted by a BCBA using a standardized tool such as the Verbal Behavior Milestones Assessment and Placement Program (VBMAPP). This information is used to establish goals that may focus on a variety of skill areas including but not limited to: expressive communication, receptive language, independent completion of adaptive and daily living skills, social readiness and social interaction skills, as well as a focus on reduction and replacement of challenging behaviors.

RBTs help to ensure that your child’s use of mastered skills are effectively translated to the natural environment. BCBAs team up with parents and caregivers to ensure carryover of successful strategies and skills across environments and with those outside of each client’s therapy team. The ultimate goal of our ABA therapy program is to help each client work toward independence while also supporting parents and caregivers so they feel confident in implementing effective strategies at home and in the community.

From initial inquiry to assessment to treatment and subsequent discharge, Milestone ABA Therapy provides a dedicated BCBA to guide you along the way. Our ABA therapy sessions consist of a combination of direct teaching, natural environment teaching, and having fun learning! In the beginning stages of therapy, your BCBA and team of RBTs will focus on pairing with your child by following their motivation and using those items or activities to pair themselves with reinforcement. We recognize that ABA therapy is intensive. You will see our faces frequently and we want the experience to be positive and beneficial for everyone.



Megan has been working in the field of Applied Behavior Analysis for three years. She obtained her RBT certification in 2018 and has worked mainly in a clinic setting.

She is currently working toward her bachelor’s degree in Applied Behavior Analysis and is attending Ball State University, graduating in 2021. After graduation, she hopes to further her education and earn her Board-Certified Behavior Analyst. Outside of work and school, Megan enjoys spending time with her daughter and friends.


Ryan is a Board-Certified Behavior Analyst. He has over 16 years of experience working with individuals with autism and other developmental disabilities in home, clinic, school and community settings.

Ryan received his M.A. in Applied Behavior Analysis from Ball State University and is pursuing his Ed.D. in Organizational Leadership. Ryan specializes in designing and implementing therapy programs using natural and structured teaching methods to help promote long-term growth for his clients.


Becky graduated from Purdue Calumet in 2017 with a bachelor’s degree in psychology. She obtained her first job in the field of Applied Behavior Analysis shortly after graduating. Becky has been in the field for over a year and has had her Registered Behavior Technician certification for over 8 months. She fell in love with working with children and found her passion in Applied Behavior Analysis rather quickly. Shortly after, she applied to Ball State University’s master’s in Applied Behavior Analysis program and began in August 2018. Her goal is to sit for her boards and become a Board-Certified Behavior Analyst in the year 2020. In her free time, Becky enjoys spending time with her family and friends.


Josilyn graduated from Purdue North Central in Hammond, Indiana in 2017. She began working with Applied Behavior Analysis the summer of 2016 and fell in love with helping others.  Ready to continue down this path, she decided to go for her master’s to become a Board-Certified Behavior Analyst. Currently at the Florida Institute of Technology, she is studying in the hybrid master’s program. Josilyn began working at Milestone Therapy in the Applied Behavior Analyst department in April 2019.


Tiara graduated from Northern Illinois University in DeKalb, Illinois in 2017 with her bachelor’s degree in family and child studies with a minor in psychology. While at NIU, she interned at a counseling clinic. She began working with Milestone Therapy in 2019 and has previous experience with in-home therapy. Tiara earned her Registered Behavior Technician Certification in 2018. She enjoys working in the ABA field and is excited to make new memories while at Milestone.


Myesha graduated with her Bachelor of Arts in psychology in 2016 from Monmouth College. After working in the school environment for a year, she started working in homes conducting ABA. After she discovered her love for the field, she went on to pursue her master’s in psychology with a specialization in ABA at Capella University. When she is not studying, she likes to spend time with her husband and to travel.


Corina is currently enrolled at Purdue University Global and is pursuing her bachelor’s in applied behavior analysis. She began working in ABA at a young age and has found that this is her passion in life. She has had experience working in both clinical and in-home settings. Corina began at Milestone Therapy in 2019 and truly enjoys working with clients. She is married and has many furry babies.


Stacey has been an RBT for over a year and has worked in the ABA field for close to 3 years. Stacey loves seeing progress with the children she works with and is eager to continue her education in ABA. She graduated from Indiana University Northwest with a degree in psychology and is now pursuing her master’s in applied behavior analysis, expected to finish in 2019. In Stacey’s free time she enjoys spending time with friends and family as well as exercising.


Shanon is a Board Certified Behavior Analyst who received her Master’s Degree in Applied Behavior Analysis from Ball State University in 2015. Shanon has over 15 years’ experience working with both children and adolescence diagnosed with Autism and developmental disabilities in both home and school settings. Shanon specializes in curriculum assessment and program development for young children with autism, applying verbal behavior methodologies into programming, play based learning, incidental teaching, and functional communication training.


Cheryl has worked in an ABA clinic for four years and has been a registered behavior technician for two. She has completed PECS training and attended many precision teaching conferences over the years. She is currently pursuing her degree in behavior analysis at Ball State University. She is excited to begin her journey at Milestone Therapy and to expand her knowledge in ABA therapy.


Natasha graduated from Purdue University in Hammond, Indiana in 2016 with her Bachelor of Arts in psychology and Spanish. She is an experienced mental health volunteer with a history of working in orphanages, schools, retirement homes, daycare centers, and psychiatric hospitals. She began working in the ABA field in 2018 and joined Milestone Therapy in November of 2019. Natasha is a Registered Behavior Technician who loves to travel and spend time with family.


Ahna is currently pursuing her undergraduate degree in social work at Purdue University Northwest. Ahna has always had a passion for helping others. Her background in social services relates to mental health and working with troubled youth and families. To continue her career and passion for serving, Ahna has chosen to embark on a new journey as a Registered Behavior Technician.


Rick graduated from Trinity Christian College in Palos Heights, Illinois in 2013 with his Bachelor’s degree in Business Communication. While spending some time in marketing and event planning, he also dedicated time towards developing and directing the youth department at his church. Working with children and teenagers sparked his interest in researching course work in psychology and human development. Enjoying the sense of community and one on one interaction between students and professors, he returned to Trinity Christian College and obtained his Master’s degree in counseling psychology in 2017. His internship allowed him to work in both a public and private school settings in the Chicago area, focusing on depression, anxiety, grief, anger management, and various forms of coping skills. Since graduating, Rick has been working in the field of Applied Behavior Analysis and has earned his certification as a Registered Behavior Technician. He joined Milestone Therapy in 2018 and is excited to learn and grow even further in the field of ABA.

Liz Rosko Liz
Liz Rosko


Liz obtained her undergrad degree from Ball State University in Special Education. After working in the field for eight years, she obtained a master’s degree in Educational Leadership followed by certification in ABA from Florida Institute of Technology in 2015. Liz has 12 years experience working in various public school districts developing and implementing ABA-based programs for children ages 3-10 with Autism. As a BCBA, Liz specializes in parent education and training. Liz has provided several presentations to educators, parents, and colleagues over the years including topics such as: Autism 101, ABA Strategies for Home and School, An Intro to Communication and Social Skills, and more.

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