Our Staff

The Consultants at Great Strides Behavioral Consulting are all Board Certified Behavior Analysts (BCBA) or Board Certified Associate Behavior Analysts (BCABA) who have extensive experience providing services for children with Autism and other developmental disorders.   We have overseen and assisted implementation of ABA services and classrooms in many public and private schools.  In addition, our staff has comprehensive knowledge of IDEA regulations and the IEP process that we incorporate as part of the services we provide to districts and families.

   
                            

 

Amy is the Executive Administrator of Great Strides Behavioral Consulting, Inc. which provides services to schools and private families across the United States and internationally.  Amy Streff received her Masters of Science degree in Behavior Analysis and Therapy from Southern Illinois University in Carbondale.  She was one of the original Board Certified Behavior Analysts in the state of Missouri.  During her career she has provided services to a variety of populations including children and adults with autism, mental retardation, dual diagnosis, traumatic brain injury, and typically developing children.  While completing her Masters degree she was able to be an animal trainer for the Indianapolis Zoo in their dolphin, polar bear, and seal lion area.   Amy participated in the establishment of the Special School District of St Louis County’s Applied Behavior Analysis Department in 1999. 

 

 

 
LenEll Kelley is a Board Certified Behavior Analyst who received a Master's in Applied Psychology from the University of Arkansas.  She has worked in the field of Applied Behavior Analysis focusing on intervention for children diagnosed with autism and other developmental disabilities since 1991. She received the Behavioral Toxicology Research Excellence Award in 2002 and the National Center for Toxicological Research Achievement Award in 2001 for her work conducted with the National Center for Toxicological Research (NCTR) and the FDA examining complex brain function for children with developmental disabilities and ADHD.  She has presented numerous presentations as a guest speaker as well as presentations based on research and treatment for children with developmental disabilities at professional conferences such as the Association for Behavioral Analysis Conference, Behavioral Toxicology Society, and the Society for Neuroscience.  Her primary area of focus is the application of evidence based practices in the development of treatment plans, assessment, evaluation, implementation and training for school districts, parents, and other organizations providing services for children with developmental disabilities.

 

 

Sara Estle is a Board Certified Behavior Analyst and received her PhD at Washington University in Experimental Analysis of Behavior . Sara has provided ABA services focused on children with developmental disabilities in both home and school settings. In addition to her implementation of ABA services, Sara has been actively involved in research, presenting and publishing in the areas of self-control, impulsivity, and decision-making. In addition to working with families through Great Strides Behavioral Consulting, she is currently an Instructor at Washington University where she teaches courses in applied behavior analysis and research methodology. Sara also coordinates the Applied Behavior Analysis Certificate program offered through Washington University’s University College.
  

 Misty Oppenheim-Leaf is a Board Certified Behavior Analyst and received her master’s degree in Applied Behavior Sciences at the University of Kansas.  Misty has provided ABA interventions to children diagnosed with autism and other developmental disabilities in both home and school settings.  During her time at the University of Kansas, she helped develop and run a preschool program focused on training new therapists and providing quality, intensive ABA interventions to young children diagnosed with Autism Spectrum Disorders.  In addition, she was the co-director of a social skills group at the University of Kansas, where she helped implement social skills interventions in a group setting for children diagnosed with an autism spectrum disorder.  Her primary areas of focus have included improving the quality of early intervention techniques, social skills interventions, parent and staff training, and sibling related issues.

  

Justin Pic

Justin B. Leaf, is a Board Certified Behavior Analayst who completed his PhD at the University of Kansas under the mentorship of Dr. James Sherman and Dr. Jan Sheldon. Justin has over seven years of experience working with children, adolescents, and adults with autism and other developmental disabilities. Justin began his career working for Dr. Leaf, Dr. McEachin, and Dr. Taubman at Autism Partnership, both as a behavior therapist and as a research coordinator. His research has included looking at ways to improve social skills for children with autism, developing friendships, and comparing different teaching methods. While at the University of Kansas Justin was the Co-Director of The Social Skills Group.  Justin has published articles in professional journals and has presented at national and state conferences and invited events

  

Krystal Cooper is a Board Certified Behavior Analyst and received her Master’s of Science degree in Behavior Analysis and Therapy at Southern Illinois University in Carbondale. Krystal has over 6 years experience working with children with autism and other developmental disabilities. During this time she has evaluated, developed, and implemented various ABA interventions in home, school, and other community settings. She has also led several social skills groups integrating typically developing children and children diagnosed with autism, as well as participated in research involving social skills, group discrete trial training, and joint attention. In addition, she has provided extensive, direct training to school staff in the areas of applied behavior analysis, autism, the treatment of problem behaviors, and early intensive behavior intervention. Krystal’s primary areas of interest include parent, sibling, and school staff training, group teaching, early intervention, and social skills training.

 

 
  Melinda DeClue is an ABA Implementer.  She holds a bachelor's degree in Psychology from Truman State University. Melinda has eight years of experience working with clients with varying diagnoses.  She has also facilitated Cognitive-Behavioral Therapy and Conflict Resolution groups with adults. Since 2008, she has focused on providing ABA services to children in both home and community settings. She has completed additional graduate coursework in the area of applied behavior analysis and will be sitting for her Board Certified Assistant Behavior Analyst examination.   Her primary interests are verbal behavior, social skills, parent training and direct instruction.
 
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