Our Story
The founder of Applied Behavioral Learning Group was among the pioneering behaviorists serving clients in Los Angeles County as early as 1996. She collaborated closely with fellow behavior analysts to demonstrate the effectiveness of B.F. Skinner’s behaviorism, which laid the foundation for what we now know as Applied Behavior Analysis (ABA).
Following the passage of state legislation funding ABA services for children diagnosed with autism—and the introduction of formal certification for behavior analysts—our founder launched a service organization dedicated to intensive early intervention. This vision became reality in October 2003 with the founding of Yi and Associates, which later evolved into Applied Behavioral Learning Group, Inc., initially serving families in the San Gabriel Valley
As the demand for quality ABA services grew, so did our reach. We expanded throughout the Greater Los Angeles Area, including the San Fernando Valley, Santa Clarita Valley, Antelope Valley, and South Bay. In 2024, our mission extended globally as we began supporting children and families worldwide through humanitarian outreach and contributions.
Linda J. Yi
Founder and CEO
Bio
Linda Yi is both a Board-Certified Behavior Analyst (BCBA) and a licensed social worker. She began her career in 1996 as a behavioral consultant—prior to the establishment of board certification standards—making her a true pioneer in the field. Working alongside renowned behaviorists like Dr. John Youngbauer, she contributed to the development of early legislative frameworks for autism programs in California. Her decades of dedicated service have helped lay the foundation for ABA (Applied Behavior Analysis) and autism services across the state.
Linda holds a Bachelor of Arts from the University of California, Berkeley, a Master of Science in Psychology with a specialization in Behavior Analysis from California State University, Los Angeles, and a Master of Science in Social Work from Columbia University. She has also completed all Ph.D. level coursework in Behavior Analysis at the Chicago School of Professional Psychology.
As the head of Applied Behavioral Learning Group, Inc., Linda has expanded her mission to a global scale. Through humanitarian efforts and direct on-site involvement, she supports children and families worldwide. Her work includes relief efforts in fire-devastated Lahaina, Hawaii, and ongoing initiatives in Latin America supporting schools, homes for individuals with disabilities, and shelters for unwed mothers. From painting tiny homes for displaced families to planting trees in public parks and building shade structures and greenhouses in schools, Linda brings hands-on compassion to every project.
Before founding her agency, Linda hosted radio broadcasts on KCBN, using media to raise awareness and educate the public. She served as president-elect of the Koreatown Rotary Club from 2023 to 2024 prior to serving as president for the 2024–2025 term. Additionally, she was a board member of the Canyon City Foundation from 2019 to 2024, reflecting her enduring commitment to community service and advocacy.
SANDRA KREBS
Bio
Sandra Krebs is a dedicated and meticulous Program Coordinator with extensive experience in social services, particularly in Child and Family Welfare. With a robust background in program design, strategic planning, and team leadership, Sandra brings over two decades of expertise in streamlining operations, supervising multidisciplinary teams, and ensuring regulatory compliance across diverse environments.
Since 2013, Sandra has served as Program Coordinator, Supervisor, and Behavioral Therapist at Applied Behavioral Learning Group. In this role, she provides in-home therapy services to children and families, implementing evidence-based behavioral strategies, training staff in play therapy, supporting language development, and contributing significantly to IEP processes. Sandra also supervises staff, evaluates program effectiveness, and maintains high standards of service delivery through data-driven decision-making.
Beyond her professional roles, Sandra has made substantial contributions to family welfare through court-appointed work as a Visitation Monitor for the Los Angeles County Family Court. She has also held positions as a Juvenile Diversion Counselor, Hotline Crisis Counselor and Trainer, and Program Developer for several respected organizations, including Childhelp USA and the Torrance Police Department.
Sandra holds a Bachelor’s degree in Communications from Virginia Intermont College, has completed coursework in a Master’s Program in Counseling at California State University–Los Angeles, and earned Basic POST certification through the Law Enforcement Reserve Academy at El Camino College. Her published work includes a contribution to the professional journal Response: Child Sexual Abuse: The Clinical Interview.
Our Mission Statement
Our goal is to utilize the science-practitioner model by developing and implementing research-proven techniques with the purpose of eliminating autism and related disorders through behavioral intervention and training.
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