Reinforcement is a helpful strategy for encouraging your child's positive behavior. It is also a foundation for the behavior analysis-based strategies that we discuss on this website. I've looked at many YouTube videos on the topic, and this one is one of the most user-friendly I've found. It starts with a technical definition and makes it much easier to understand. If you've been confused by what positive reinforcement is, this is the video for you!
The video above is from Autism Live, which is not affiliated with AutismProblemBehavior.com