Kristen Obermeyer Rodriguez, Ed.S., BCBA

Ed.S. – Florida State University

Ms. Rodriguez is co-director of Behavior Changes. She has a specialist degree in school psychology from Florida State University as well as a masters degree in Counseling and Human Systems. Ms. Rodriguez is an adjunct instructor with the University of West Florida and Northwest Florida State University. 

Ms. Rodriguez has 12 years experience in providing ABA services. Her experiences in ABA include behavioral management for high risk youth with developmental delays, maladaptive behavior reduction for children and adults through Florida Medicaid Waivers, and early literacy, reading, and language assessments. 

Ms. Rodriguez lives in Defuniak Springs, Florida.



Steven C. Stout, Ph.D., BCBA-D

Ph.D. – Texas Christian University
Postdoctoral Fellow – Binghamton University

Dr. Stout is co-director of Behavior Changes. For 8 years he was professor of psychology at Jacksonville State University (JSU) where he taught graduate and undergraduate courses in psychology and applied behavior analysis and remains adjunct instructor. Dr. Stout has published on several topics in basic learning theory. He has maintained a parallel interest in ABA, of which he has 12 years experience, including direct therapy, parent training, special education consulting. Venues include schools, group homes, day treatment centers, and an institution for citizens with developmental disabilities.

Dr. Stout lives in Gulf Breeze, FL.

Valerie Anderson, M.A., BCBA

M.A. - Sam Houston State University

Ms. Anderson holds a masters of arts degree from Sam Houston State University from the Low Incidence Disabilities and Autism program. She also holds a bachelor of arts degree in international business management from Marietta College. Her behavior analysis experience includes serving as behavior analyst for PeopleCare, Inc. in El Paso, TX. Aptitude Habilitation Services in El Paso, TX, and the Texas Department of Aging and Disabilities Services. Prior to these experiences, Ms. Anderson lived in Bonn, Germany where she worked in various marketing, administrative capacities, and language assistance capacities. 

Chasity Evans, M.A., BCBA

Chasity Evans became a Board Certified Behavior Analyst in 2014. She holds a Master of Arts degree in Exceptional Student Education from the University of West Florida. Chasity is also a graduate of the University of South Alabama with a Bachelor’s degree in Psychology. Prior to joining Behavior Changes, Chasity worked as a behavior therapist at an outpatient therapy clinic and most recently, as a BCBA at a local autism center.

Megan Merrell, M.S., BCBA

BCBA - Chicago School of Professional Psychology

Megan Merrell also known as “Miss Megan” is a master’s level board certified behavior analyst with over 12 years of experience working with children, adolescents, and adults with autism spectrum disorders. Megan began her career as a behavior technician in 2003 while pursuing a bachelors degree in speech and hearing science at The Ohio State University. Her passion to applied behavior analysis continued as she earned her master’s of science in human services with concentration in mental health counseling in 2009 from Capella University and postgraduate BCBA certification from The Chicago School of Professional Psychology in 2011. Megan spent time under the supervision of Dr. James Mulick, Dr. Sherrie Ireland, Dr. Carol Bline, and fellow behavior analyst Jamie Fuller. During her supervision, Megan worked in community, school, and clinical settings implementing behavior technology and specializing in social skills development. She has experience with development and monitoring of IEPs, use of several curriculums including Relationship Development Intervention (RDI), FloorTime, TEACHH, Superskills, and social thinking. Megan is knowledgeable of verbal behavior with implementation of the verbal behavior milestones assessment placement program (VB-MAPP), Picture Exchange Communication (PEC),  and American Sign Language (ASL). Additionally, Megan is skilled in conducting functional behavior assessments and creating interventions to produce behavior change along with parent training programs. Following board certification in 2013, Megan spent time working with adults located in group homes in Nashville, Tennessee where her supervision of direct support staff was employed. Her dream to live on the beach came true when she moved to Florida in 2014. 

Alise Barton, M.S., BCBA

M.S. – Jacksonville State University

Ms. Barton is a native of Chattanooga Tennessee. She graduated with a bachelors degree in psychology from the University of Tennessee at Chattanooga. She graduated has a masters degree in applied psychology from Jacksonville State University. Her experience in developmental disabilities includes the Little Tree Preschool in Jacksonville, AL, and Autism & Behavior Services, Catoosa County Public Schools, Catoosa County Special Olympics, Club D, and Zooability in the Chattanooga area of Tennessee. 

Ms. Barton lives in Santa Rosa Beach, FL.

Kathy J. Mueller, M.Ed., BCBA

bio alise.jpg

M.Ed. -- Coppin State

Mrs. Mueller is a native of Pensacola, Florida.  She graduated with a bachelor’s degree in special education from the University of West Florida, a master’s degree in curriculum and instruction from Coppin State, and completed certification in applied behavior analysis from the University of West Florida.  Mrs. Mueller has been a Board Certified Behavior Analyst since 2008.  She has extensive experience working with children on the autism spectrum and developmental delays including serving as a ESE teacher in Escambia and Santa Rosa school districts, a lead autism teacher in Paulding County, GA, a Behavior Specialist for the GA DOE, a BCBA for two intensive behavior group homes for adolescents in Pensacola, FL, and the Vice President of Children’s Programs for Capstone Adaptive Learning and Therapy Centers, Inc., in the Florida panhandle.


Kelsey Nelson, M.S., BCBA

M.S. – Jacksonville State University

Ms. Nelson is from Boaz, Alabama. She graduated with a bachelor’s degree in psychology from Jacksonville State University (JSU).  She went on to obtain a master’s degree in psychology from JSU. Her experiences in applied behavior analysis include The Little Tree Preschool, Learning 2 Mastery program, and the Center for Behavioral Studies in Jacksonville, Alabama.


Bonnie Igielski, BA, RBT

B. A. -- Auburn University

Bonnie holds a Bachelor's Degree in psychology from Auburn University. Her experience in ABA includes providing one-on-one therapy for children, adolescents, and young adults across clinical, residential, school and in-home settings. She has also provided ABA training to employees and family members for individuals on the autism spectrum. Prior to joining Behavior Changes, Bonnie worked as a supervisor at an autism center, serving individuals with developmental, and intellectual disabilities. Bonnie is also a certified PEERS instructor. Bonnie is currently enrolled in the behavior analysis program at ASU.


Christi Heitger, BA, RBT

B. A. -- Troy University


Mrs. Heitger holds a Bachelor's Degree from Troy University, with a minor in Applied Behavior Analysis. Her experience in ABA include working one on one with children in the classroom, as well as providing one-on-one therapy for children, adolescents, and young adults across, residential, school and in-home settings.  She is an ESE teacher in Walton County and works with Behavior Changes on a part time basis. Mrs. Heitger plans to pursue her Master's Degree in ABA in hopes to become a BCBA and also certify in ESE for the school district in which she works.  She has a heart for working with children and hopes to be able to provide excellent therapy in the school, clinical, and in home settings.  

Mrs. Heitger is a resident of DeFuniak Springs.