Center for Behavioral Sciences enriches the lives of individuals with developmental disabilities through cutting-edge, research-driven behavior analytic services.


Our ultimate goal is to establish behavioral contingencies for the individuals, families, and communities we serve, to create lasting positive change and empower those with developmental disabilities to reach their full potential!


Education. Ambition. Innovation.®

Click on each tab below to learn more about how CBS embodies our trademark values.

Our highly-trained behavior consultants understand the power of education to create lasting positive change in individuals’ lives!

Therefore, we tirelessly educate, train and guide clients of all ages, their families, caregivers and communities.

We recognize and foster each client’s unique abilities; while at the same time, each program is continually tailored to the individual.

In doing so, we empower our clients to reach their maximum potential, for an enriched life experience!

Behind our service is a philosophy of innovation. CBS fosters a culture of learning, research and constant growth, in which staff progress academically and contribute to our field.

This keeps our programs grounded in the latest behavioral technology, tailored to each client and continually updated.


Center for Behavioral Sciences, Inc. is a state-wide behavior analysis agency, founded by Dr. Joyce C. Tu, Ed.D, BCBA-D, in 2004.   We have grown to over 100 employees, offering service primarily in Orange County, Los Angeles County, the Inland Empire and San Diego County.   CBS also provides consulting services to organizations locally and overseas.

Our foremost goal is to enrich the lives of individuals with developmental disabilities through cutting-edge, research-driven behavior analytic services.   We offer a variety of treatment formats, such as one-to-one direct instruction, consultation for parents, paraprofessionals and educators; as well as individual and group workshops.   You can find a description of our services here or in our catalog, below.

All of our services employ the science of behavior analysis.   We evaluate each client’s individual needs using a functional behavioral assessment (FBA), or referring to an existing FBA.   We assess skill deficits and behavioral excesses.   Our program is also based upon the philosophy of positive programming:  we teach appropriate replacement behaviors that are functionally equivalent, while systematically decreasing problem behaviors.

Every procedure we implement is evidence-based, tailored to the client, and grounded in the latest research.  For example:

  • To teach multiple unit behaviors such as self-care skills, we use task analysis, then chaining and fading procedures.
  • To teach single unit behaviors such as responding to an instruction, we use discrimination training, such as discrete trials teaching or shaping.
  • To teach functional communication, we use approaches derived from verbal behavior principles.  That is, we contrive and/or capture the client’s motivating operation, prompt or shape appropriate responses, and follow each target response with specific reinforcement.

By conducting a careful functional analysis, we determine the function of the target behavior, and develop a customized and effective behavior intervention plan.  Our team implements that plan, making adjustments where recommended by the supervising Board Certified Behavior Analyst, until the client’s goals are met.

Each client’s progress is data-driven.   While teaching appropriate behavior or addressing problem behavior, we use a comprehensive data collection system to track client progress.   Decisions regarding instrumental and ultimate goals are based on data—not speculation or guesswork.   Decisions about goal generalization and fading service are also data-based.

If a client requires a functional behavioral assessment, we use a systematic process.  Functional behavior assessments typically start by interviewing the client and/or the client’s parents or caretakers.  Using information gathered in these interviews, we identify specific behavioral excesses and deficits for direct observation.   Functional analysis of behavioral excesses may be indicated if a behavior causes physical harm to the client or others, or damages the environment.  

If behavior problems are severe, we may perform a functional analysis assessment (FAA).  This is an in-depth type of FBA involving the experimental analysis of behavior.  The use of FAAs for assessment and treatment has been touted as one of the most significant advancements in behavior analysis in 30 years, and is the modern standard for both clinical research and practice.   CBS is one of the few behavior analysis agencies in California offering FAAs.

Following direct observation, we conduct targeted probing sessions.   We use a number of industry standard assessment tools for probing—for example, the Verbal Behavior Milestones Assessment and Placement Program (VB-Mapp), and the Assessment of Functional Living Skills (AFLS). 

We also conduct preference assessments during probing sessions, to identify reinforcers.   This helps us to find ways to contrive and capture the client’s motivation when teaching skills, as well as methods for skill generalization.

Direct observation takes place in natural settings such as the client’s school, day program, workplace, or community (e.g., stores, parks, doctor’s offices).   We choose settings based on the likelihood that the client will engage in behavioral excesses, or have difficulty generalizing learned skills.

After the assessment, we create and implement an individualized intervention plan using the assessment results, as discussed above.


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