Applied Behavior Analysis (ABA) is a well-established evidence-based practice that focuses on modifying specific behaviors through systematic reinforcement and behavior modification techniques. 

ABA is particularly effective in managing challenging behaviors by using principles such as positive reinforcement, task analysis, and systematic instruction to teach new skills and reduce problem behaviors (National Autism Center, n.d.; Roth, Gillis, & DiGennaro Reed, 2014). 

ABA can be tailored to individual needs, making it versatile for addressing a wide range of behavioral issues in individuals with autism. It involves breaking down complex behaviors into smaller, manageable steps and providing reinforcement for desirable behaviors, which helps individuals learn new skills and behaviors more effectively.

Positive Behavior Supports (PBS) is an evidence-based practice that focuses on understanding the underlying causes of challenging behaviors and promoting positive behavior changes through individualized support plans. 

PBS emphasizes the importance of creating supportive environments that reduce the occurrence of problem behaviors and increase desirable behaviors by using proactive strategies and reinforcement (Challenging Behavior.org, n.d.; Whalon, Conroy, Martinez, & Werch, 2015). 

It involves developing individualized behavior support plans that address specific needs and contexts, using strategies such as environmental modifications, skill-building, and reinforcement to support positive behavioral outcomes.