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Mission Statement

Sunderlin Behavioral Interventions, Inc. maintains the philosophy that quality Applied Behavior Analysis (ABA) as a treatment is defined by high ethical standards and compassionate attention to detail. We believe that educating the caregiver is just as important as creating cutting-edge behavioral programs for our clients. As a small, private agency with a great deal of experience, we are able to offer more personalized services. 


Our area of expertise as Board Certified Behavior Analysts (BCBA’s) is providing behavior management, using Positive Behavior Support strategies to achieve long lasting behavior change. This evidence-based approach uses a collaborative model that combines Behavior Analysis, Person-Centered Values and Systems Change ("It takes a village...") to enhance an individual's quality of life. 

Holiday Closures

  • New Year's Day: Friday January 1, 2021

  • Memorial Day: Monday, May 21, 2021

  • Independence Day (Observed): Monday, July 5, 2021

  • Labor Day: Monday, September 6, 2021

  • Thanksgiving Day: Thursday, November 25, 2021

  • Day after Thanksgiving: Friday, November 26, 2021

  • Christmas Eve: Friday, December 24, 2021

  • Christmas Day: Saturday December 25, 2021

  • New Year’s Eve: Friday, December 31, 2021

  • New Year’s Day: Saturday January 1, 2022

"Working with Yrenka was one the best decisions we've made as parents in quite some time.  Her approach has helped our family tremendously.  We are now spending more time enjoying one another, rather than the daily grind of parent/child power struggles.  Wish we had discovered her sooner."  ~Parent


Yrenka Sunderlin, Director

Yrenka Sunderlin is a Board Certified Behavior Analyst (BCBA) with an extensive background working with individuals with special needs. Her path to a career in Applied Behavior Analysis (ABA) started with working in a residential facility (Level 12) 20 years ago. While there, she learned to identify a myriad of challenging behaviors, but observed that the treatment of choice at the facility was not effective in achieving lasting, positive behavior change. She knew that she wanted to make a difference, and that using evidence-based practices, such as Applied Behavior Analysis (ABA), was most likely going to make this a reality. After receiving a Bachelor’s degree in Psychology from the University of La Verne, she then attended California State University, Los Angeles to complete her Master's Degree in ABA under the mentor-ship of Dr. Randy Campbell, Dr. Michele Wallace, and Dr. Henry D. Schlinger, Jr. During this time, she began receiving extensive formal training by Kari Berquist, Ph.D. BCBA-D in ABA methodologies, including Discrete Trial Training, Picture Exchange Communication System, Pivotal Response Treatment, Verbal Behavior, Positive Behavior Support, Functional Communication Training, Functional Behavior Assessments, completed the Autism Certification Program and UCLA PEERS® certification program.

She is a member of the Association for Behavior Analysis International and the California Association for Applied Behavior Analysis. She subscribes to scholarly journals, participates in continuing education opportunities and maintains close ties with a network of professionals in the field.

In addition to being a respected Behavior Analyst, she is currently an adjunct faculty member teaching BCBA course sequence at National University (Camarillo). She also serves as an Advisory Board Member for Reid's Gift.


In an effort to reach out to the under-served Spanish speaking community, Yrenka provides parent education workshops (in Spanish) at a local resource center in Ventura County.

 BCBA# 1-10-6753

Our Director

Yrenka Sunderlin, MS, BCBA


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